Serious Sheet Pan Vegetable Medley with Balsamic Glaze

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · Published 2026-03-31 · Updated 2026-03-31

A vibrant mix of roasted vegetables glazed with a tangy balsamic reduction, offering a deep, savory flavor profile. This italian-inspired sheet pan ready in about 60 minutes pairs sliced zucchini, diced bell peppers, sliced red onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 220 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

• 2 lbs, sliced zucchini
• 2, diced bell peppers
• 1, sliced red onion
• 3 tbsp olive oil
• 2 tbsp balsamic vinegar
• 2, minced garlic cloves
• 1 tsp salt
• 1/2 tsp black pepper

Instructions

1. Step 1: Preheat oven to 400°F (200°C). Line a sheet pan with parchment paper.
2. Step 2: In a bowl, mix 3 tbsp olive oil, 1 tsp salt, 1/2 tsp black pepper, and 2 minced garlic cloves.
3. Step 3: Toss zucchini, bell peppers, and red onion with the oil mixture. Spread in an even layer on the sheet pan.
4. Step 4: Roast for 25-30 minutes until vegetables are tender and slightly caramelized.
5. Step 5: In a small saucepan, combine 2 tbsp balsamic vinegar and 1 tbsp olive oil. Simmer over medium heat for 5 minutes until reduced by half. Drizzle over the vegetables and serve.