Gluten-Free Grilled Zucchini

The smoky char and tender bite of perfectly grilled zucchini, enhanced by a bright, herbaceous lemon-garlic dressing. This vibrant side dish offers a delightful balance of fresh flavors and satisfying textures, making it an ideal accompaniment to any meal.

Prep: 15 min Cook: 20 min Total: 35 min Serves: 4

At a glance: This medium salads and sides recipe yields 4 servings in about 35 minutes (15 min prep, 20 min cook). It uses 8 ingredients — including zucchini, extra virgin olive oil, fresh lemon juice — and walks through 5 steps. Updated October 25, 2026. Browse more salads and sides recipes or return to all gluten-free recipes.

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Cross-Contamination Warning for Gluten-Free Grilled Zucchini: When preparing this salads and sides recipe, only the Dijon mustard in the dressing is packaged, so check it for a gluten-free label. Scrub the grill grates before laying down the zucchini planks.

Gluten-Free Notes for Gluten-Free Grilled Zucchini: This recipe is naturally gluten-free, relying on fresh vegetables and simple seasonings. Ensure any packaged ingredients, like Dijon mustard, are gluten-free to avoid cross-contamination with gluten-containing grains.

Scale Recipe:

servings

Ingredient amounts update automatically

Ingredients

Shop links on this page are for Dijon mustard. Buy the package that says gluten-free. A shared production line is the usual risk with these pantry items. As an Amazon Associate, we earn from qualifying purchases, at no extra cost to you. Confirm the product is labeled gluten-free before you buy.

2 medium zucchini, trimmed and sliced lengthwise into 1/2-inch thick planks
2 tbsp extra virgin olive oil
1 tbsp fresh lemon juice
1 tsp Dijon mustard (verify GF) Shop
0.5 tsp salt
0.25 tsp black pepper
1 clove garlic, minced
2 tbsp fresh parsley, chopped (optional garnish)

Instructions

1 Prepare the zucchini by slicing it lengthwise into planks about 1/2-inch thick. Pat the zucchini planks dry with paper towels to ensure a good sear on the grill. Arrange the zucchini planks in a single layer on a baking sheet or platter.
2 In a small bowl, whisk together the extra virgin olive oil, fresh lemon juice, Dijon mustard, salt, black pepper, and minced garlic until well combined. This creates a vibrant dressing that will infuse the zucchini with flavor.
3 Brush both sides of the zucchini planks generously with about half of the prepared lemon-garlic dressing. Reserve the remaining dressing for serving. Allow the zucchini to marinate for about 5-10 minutes while you preheat your grill.
4 Preheat your grill to medium-high heat. Carefully place the dressed zucchini planks onto the hot grill grates. Grill for approximately 4-5 minutes per side, or until the zucchini is tender and has distinct grill marks, turning once. Watch closely to prevent burning.
5 Once grilled to perfection, remove the zucchini planks from the grill and arrange them on a serving platter. Drizzle the remaining lemon-garlic dressing over the warm zucchini and garnish with fresh chopped parsley, if desired. Serve immediately as a delicious side dish.

Nutrition (per serving)

328

Calories

10g

Protein

30g

Carbs

14g

Fat

Fiber

276mg

Sodium

Tips & Notes

Pat the zucchini planks dry, as step 1 says. Dry zucchini gets grill marks instead of steaming.
Leave the planks in place until they release easily from the grates before flipping.
Grill just until tender with a little bite. Overcooked zucchini turns limp.

Common questions

What cross-contamination risk is specific to Gluten-Free Grilled Zucchini?

Check zucchini, trimmed and sliced lengthwise into 1/2-inch thick planks, extra virgin olive oil, fresh lemon juice before they go into Gluten-Free Grilled Zucchini. Only the Dijon mustard in the dressing is packaged, so check it for a gluten-free label. Scrub the grill grates before laying down the zucchini planks.

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