Experience the ultimate summer side dish with our recipe for THE BEST Grilled Zucchini. Featuring a simple yet incredibly flavorful marinade and expert tips, we guarantee perfectly crispy, charred zucchini every single time. This versatile vegetable pairs beautifully with grilled marinated steak, succulent lemon rosemary chicken, or virtually any main course from your grill, making it an essential addition to your backyard BBQ repertoire.
The Secret to Unforgettable Crispy Grilled Zucchini
There’s nothing quite like fresh, seasonal zucchini, especially when it’s transformed into a delectable side dish on the grill. For the past few summers, we’ve been fortunate enough to receive an abundance of zucchini and summer squash from our generous neighbors. This seasonal gift inspired us to perfect a grilled zucchini recipe that truly stands out. Through countless grilling sessions and careful experimentation, my husband and I have fine-tuned a marinade that infuses the squash with incredible flavor, ensuring it’s anything but bland.
Our signature marinade is surprisingly simple, yet remarkably effective. A harmonious blend of spicy brown mustard, classic A1 sauce, and high-quality olive oil creates a tantalizing coating that caramelizes beautifully on the grill. This unique combination delivers a tangy, savory, and slightly piquant profile that complements the natural sweetness of the zucchini, making it utterly irresistible.
The absolute key to achieving that coveted crispy texture and distinct char on your grilled zucchini lies in one crucial element: a scorching hot grill! Soggy squash is a culinary disappointment nobody wants. Therefore, it’s imperative to preheat your grill thoroughly, allowing it to reach an optimal temperature before placing the zucchini. This high heat instantly sears the exterior, locking in moisture while creating those desirable char marks and a wonderfully crisp bite that distinguishes truly great grilled zucchini from the rest.
This versatile recipe isn’t limited to just zucchini. If your garden or local market offers an array of summer squash, feel free to incorporate it! Yellow summer squash can be prepared using the exact same method, yielding equally delicious results. Whether you use zucchini, yellow squash, or a vibrant medley of both, this marinade and grilling technique will deliver consistently crispy, flavorful vegetables.
Essential Ingredients for Perfect Grilled Zucchini
Crafting the best grilled zucchini starts with selecting the right ingredients. Below, we’ll detail each component of our recipe, explaining its role and offering practical substitution options. For precise measurements, please refer to the comprehensive recipe card located at the bottom of this article.
- Zucchini (or Yellow Summer Squash): The star of our dish! We recommend using about 2 pounds of squash, which typically translates to 4 medium-sized zucchinis. When selecting zucchini, look for firm, unblemished specimens. Younger, smaller zucchinis tend to be sweeter and less watery. Feel free to use yellow summer squash, or a delightful combination of both for added color and subtle flavor variation.
- Spicy Brown Mustard: Despite its name, this mustard primarily contributes a complex tang and a savory depth, rather than overwhelming heat. It provides a crucial zing to the marinade, cutting through the richness and brightening the overall flavor profile. If spicy brown mustard isn’t available, a good quality Dijon mustard can be a suitable alternative, offering a similar pungent kick.
- A1 Sauce: This iconic steak sauce is a secret weapon in our marinade. Its distinctive blend of tart, sour, salty, and peppery notes adds an umami-rich layer of flavor that beautifully enhances the zucchini. It provides a unique complexity that simple marinades often lack. If you don’t have A1, a Worcestershire sauce combined with a touch of balsamic vinegar and a pinch of brown sugar could offer a comparable depth.
- Olive Oil: Essential for carrying the flavors of the marinade and helping the zucchini achieve that desired crisp exterior on the grill. It also prevents sticking to the grates. Use a good quality extra virgin olive oil for the best taste. Vegetable oil or avocado oil can be used as alternatives, though they may slightly alter the flavor profile.
- Sea Salt: A fundamental seasoning that enhances all the other flavors. Sprinkling it on the zucchini just before grilling helps draw out a tiny bit of moisture, contributing to a firmer, crispier texture. We prefer flaky sea salt for its texture and clean taste, but fine sea salt or kosher salt will also work well.
Mastering the Cut: How to Prepare Zucchini for Grilling
The way you slice your zucchini is paramount to achieving perfectly crispy grilled results. Thin spears are the ideal shape, as they cook quickly and evenly, allowing for maximum surface area to develop that delightful char. The exact cutting method will depend on the size and shape of your zucchini.
- For Medium, Straight Zucchini: Begin by washing and trimming both ends of the zucchini. Then, slice the zucchini in half lengthwise. Take each half and slice it lengthwise again into 4-6 spears. The goal is to create spears that are roughly ¼ to ½ inch thick. This ensures they cook thoroughly without becoming mushy and allows them to achieve a nice crispy exterior.
- For Larger Zucchini: If you’re working with particularly large or thick zucchini, you might want to adjust your approach. First, cut it lengthwise into quarters. Then, further slice each quarter lengthwise into spears. You might get more spears from each quarter, aiming for that consistent ¼ to ½ inch thickness. Overly thick spears will steam rather than char, leading to a softer, less desirable texture.
- Consistency is Key: Regardless of the zucchini’s initial size, aim for consistent thickness across all your spears. This ensures that every piece cooks at the same rate, preventing some from becoming overcooked while others are still raw.
- Yellow Summer Squash: Apply the exact same cutting method if you are incorporating yellow summer squash into your recipe. Its texture and density are similar to zucchini, so it will grill beautifully when cut into uniform spears.
Properly cut zucchini sets the stage for success, allowing the marinade to penetrate effectively and the grill to work its magic, transforming simple squash into a crispy, flavorful delight.
Step-by-Step Grilling Instructions
Follow these straightforward steps to achieve perfectly marinated and grilled zucchini:
- Prepare the Marinade and Zucchini: Start by cutting your zucchini into thin, even spears as detailed in the “How to Cut Zucchini” section above. In a large plastic zipper bag or a shallow container with a lid, combine the sliced zucchini spears with the spicy brown mustard, A1 sauce, and olive oil. Seal the bag or container and toss thoroughly until every single piece of zucchini is evenly coated in the rich marinade.
- Marinate for Flavor Infusion: Once coated, place the zucchini in the refrigerator to marinate. Allow it to soak up all those wonderful flavors for at least 1 hour. For an even more profound depth of flavor, you can marinate the zucchini for up to 8 hours. The longer it marinates, the more intense the taste will be, making a significant difference in the final dish.
- Preheat and Prepare the Grill: Before you even think about placing the zucchini on the grates, ensure your grill is properly preheated. Fire up your grill over medium-high heat, aiming for a temperature between 425-450°F (218-232°C). This high heat is critical for achieving that desirable char and crispy texture. While the grill heats, spray the clean grill grates generously with cooking spray to prevent the zucchini from sticking.
- Grill to Perfection: Carefully remove the zucchini spears from the marinade, letting any excess drip off. Arrange them in a single layer on the hot grill grates, ensuring not to overcrowd the grill. Overcrowding can lower the grill’s temperature and lead to steaming instead of grilling. Sprinkle the sea salt evenly over the zucchini as it begins to cook. Grill for approximately 5-6 minutes on the first side, until deep grill marks appear and the zucchini softens slightly.
- Flip and Finish: Using tongs, carefully flip each zucchini spear to cook the other side. Continue grilling for an additional 5-6 minutes, or until the zucchini is tender-crisp, beautifully charred, and cooked through. The cooking time may vary slightly depending on the thickness of your spears and the exact heat of your grill.
Once cooked, immediately remove the grilled zucchini from the grill. For a final flourish and a boost of texture, consider garnishing with a sprinkle of flaky sea salt. This simple touch is one of our favorite finishing secrets that truly elevates many recipes!
Perfect Pairings: What to Serve with Grilled Zucchini
This marinated grilled zucchini is the quintessential summer side dish, adaptable to almost any meal. Since you’re already firing up the grill for the zucchini, it’s the perfect opportunity to cook your entire meal outdoors! We highly recommend pairing this flavorful zucchini with grilled meats, poultry, or seafood, and perhaps another complementary grilled vegetable for a complete and satisfying spread.
Here are some of our tried-and-true recipes that pair exquisitely with this grilled zucchini, having been enjoyed countless times over the years:
- Beef Dishes:
- Grilled Marinated Tri Tip: The robust flavors of a perfectly grilled tri-tip stand up beautifully to the tangy zucchini.
- Chipotle Lime Carne Asada: The smoky, zesty notes of carne asada create a dynamic and exciting flavor combination.
- Grilled Steak Skewers: Easy to manage alongside zucchini on the grill, offering a delightful medley of textures.
- Grilled New York Strip Steak with Peppercorn Crust: The peppery crust and rich steak are perfectly balanced by the fresh zucchini.
- Marinated Grilled Skirt Steak: A quick-cooking steak that complements the rapid grilling time of the zucchini.
- Chicken Creations:
- Grilled Marinated Chicken Thighs: Juicy, flavorful chicken thighs are a perennial favorite with grilled vegetables.
- Grilled Honey Mustard Chicken: The sweet and tangy chicken pairs harmoniously with the zucchini’s marinade.
- Grilled Sazon Chicken Thighs: A burst of Latin-inspired flavor that works wonderfully with the simple grilled zucchini.
- Seafood Sensations:
- Grilled Bacon Wrapped Shrimp: A decadent yet light option that contrasts beautifully with the fresh zucchini.
- Garlic Lime Grilled Shrimp: Zesty and bright, this shrimp recipe enhances the summery feel of the meal.
- Chimichurri Grilled Salmon: The vibrant herbal notes of chimichurri perfectly complement the grilled squash.
- Additional Vegetable Sides:
- Cheesy Grilled Potatoes: When you’re looking to add another hearty side dish, these grilled potatoes are a fantastic choice, especially if you’re already grilling!
No matter what you choose to serve alongside it, our crispy grilled zucchini promises to be a vibrant, healthy, and delicious addition to your al fresco dining experience.
Discover More Zucchini Delights!
Find yourself with an overflowing harvest of summer zucchini? Don’t let a single squash go to waste! Zucchini is incredibly versatile, lending itself to a multitude of easy and delicious recipes beyond just grilling. Explore these other fantastic zucchini creations to make the most of this abundant summer vegetable:
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Grilled Zucchini
4
servings
10
10
1
1
20
Whitney Bond
Side Dish
American
Gluten Free, Vegan, Vegetarian
Video
Video: How to make Marinated Grilled Zucchini
Ingredients
- 2 pounds zucchini, or yellow summer squash
- ¼ cup spicy brown mustard
- ¼ cup A1 sauce
- 2 tablespoons olive oil
- ½ teaspoon sea salt
Instructions
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Cut the zucchini lengthwise into spears. (See detailed tips in the “How to Cut Zucchini for Grilling” section above.)
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Add the zucchini to a large zipper bag or container with the spicy brown mustard, A1 sauce, and olive oil. Toss until all of the zucchini is coated in the marinade.
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Marinate in the refrigerator for at least one hour, or up to 8 hours for maximum flavor.
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Preheat your grill over medium-high heat, targeting a temperature between 425-450°F (218-232°C).
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Spray the grill grates with cooking spray to prevent sticking. Use tongs to carefully remove the zucchini from the marinade and place it in a single layer on the hot grill grates. Sprinkle the sea salt evenly over the zucchini.
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Cook for 5-6 minutes until grill marks appear. Flip and cook for an additional 5-6 minutes, or until tender-crisp and charred.
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Remove from the grill and serve immediately.
Chef’s Notes & Pro Tips for Perfect Grilled Zucchini
- Optimal Zucchini Preparation: For best results, ensure your zucchini spears are cut to a consistent thickness of about ¼ to ½ inch. This guarantees even cooking and promotes a crisp texture rather than a soggy one.
- Versatile Squash Options: This recipe is incredibly adaptable. Feel free to use yellow summer squash in place of or in combination with zucchini, applying the same cutting and grilling methods for equally delicious outcomes.
- The Golden Rule of Grilling: Always, and we mean always, preheat your grill to a high temperature (425-450°F) before adding the zucchini. This high heat is crucial for achieving a beautiful sear, distinct char marks, and that irresistible crispy exterior. Cold grates will only steam the zucchini.
- Preventing Stickage: Don’t forget to generously spray your grill grates with cooking spray. This simple step makes flipping easier and ensures your beautifully charred zucchini doesn’t stick.
- Mind the Thickness: Reinforcing the point: if your zucchini spears are thicker than half an inch, they will likely become tender but not truly crispy. Aim for that sweet spot of ¼ to ½ inch.
- Maximize Flavor with Marinating Time: While a minimum of 1 hour is required for the marinade to work its magic, allowing the zucchini to marinate for a longer duration—up to 8 hours—will significantly deepen its flavor profile. Plan ahead for a truly sensational taste!
- Oven Roasting Alternative: If grilling isn’t an option, you can roast this zucchini recipe in the oven. Place the marinated zucchini in a single layer on a wire rack set over a foil-lined baking sheet. This setup mimics the air circulation of a grill, helping achieve a similar texture. Preheat your oven to 400°F (200°C). Roast for 8-10 minutes, then flip the zucchini and continue cooking for an additional 8-10 minutes, or until tender and lightly browned.
- Dietary Information: This recipe is naturally gluten-free. While A1 sauce isn’t always explicitly labeled as such, its ingredients typically do not contain gluten, making it suitable for those with gluten sensitivities. It is also a fantastic vegan and vegetarian side dish.
- Storage and Reheating: Leftover grilled zucchini can be stored in an airtight container in the refrigerator for up to 3-4 days. While it’s best served fresh, you can gently reheat it in a pan or on a baking sheet in the oven until warmed through, though it may lose some of its original crispness.
Nutrition Facts (per serving)
Carbohydrates 11g (4%)
Protein 4g (8%)
Fat 8g (12%)
Saturated Fat 1g (5%)
Polyunsaturated Fat 1g
Monounsaturated Fat 6g
Sodium 724mg (30%)
Potassium 661mg (19%)
Fiber 3g (12%)
Sugar 7g (8%)
Vitamin A 508mg (10%)
Vitamin C 42mg (51%)
Calcium 49mg (5%)
Iron 1mg (6%)
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