Charcoal-Grilled Vegetable Skewers with Garlic Herb Marinade

By Lauren Mitchell, Test Kitchen Director · Reviewed by AislePrompt Editorial · Published 2026-05-05 · Updated 2026-05-05

A colorful medley of vegetables marinated in a zesty garlic herb sauce and grilled over charcoal for smoky flavor. This mediterranean-inspired grilling (vegetarian, vegan) ready in about 52 minutes pairs zucchini, red bell pepper, yellow squash for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 150 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 1 medium, cut into 1-inch rounds zucchini
• 1 large, cut into 1-inch pieces red bell pepper
• 1 medium, cut into 1-inch rounds yellow squash
• 1 small, cut into wedges red onion
• 8 oz, whole button mushrooms
• 1/4 cup olive oil
• 4, minced garlic cloves
• 1 tbsp, finely chopped fresh rosemary
• 1 tbsp fresh thyme leaves
• 2 tbsp lemon juice
• 1 tsp salt
• 1/2 tsp black pepper
• 6, soaked in water for 30 minutes wooden skewers

Instructions

1. Step 1: In a large bowl, whisk together 1/4 cup olive oil, 4 minced garlic cloves, 1 tbsp finely chopped fresh rosemary, 1 tbsp fresh thyme leaves, 2 tbsp lemon juice, 1 tsp salt, and 1/2 tsp black pepper to create the marinade.
2. Step 2: Add 1 medium zucchini cut into 1-inch rounds, 1 large red bell pepper cut into 1-inch pieces, 1 medium yellow squash cut into 1-inch rounds, 1 small red onion cut into wedges, and 8 oz whole button mushrooms to the marinade. Toss gently to coat all vegetables evenly. Cover and refrigerate for 30 minutes.
3. Step 3: Preheat charcoal grill to medium heat, letting coals burn down to a consistent medium temperature.
4. Step 4: Thread marinated vegetables onto 6 soaked wooden skewers, alternating for color and variety.
5. Step 5: Place vegetable skewers on the grill and cook for 10-12 minutes, turning every 3 minutes, until vegetables are tender and lightly charred on all sides. Remove from grill and serve warm.