Best-Of-All-Time Roasted Vegetable Medley

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · Published 2026-04-05 · Updated 2026-04-05

A vibrant, caramelized vegetable mix with balsamic glaze that’s a crowd-pleasing side dish or light main course. This mediterranean-inspired vegetarian (gluten-free) ready in about 43 minutes pairs medium, sliced 1/2-inch thick zucchini, seeded and chopped red bell pepper, cut into 1-inch wedges red onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 120 calories and feeds 6, 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 medium, sliced 1/2-inch thick zucchini
• 1, seeded and chopped red bell pepper
• 1, cut into 1-inch wedges red onion
• 3 tbsp olive oil
• 2 tbsp balsamic vinegar
• 1 tsp dried oregano
• 1/2 tsp salt
• 1/4 tsp black pepper

Instructions

1. Step 1: Preheat oven to 425°F. Toss 2 sliced zucchini, 1 chopped red bell pepper, and 1 cut red onion with 3 tbsp olive oil, 1/2 tsp salt, 1/4 tsp black pepper, and 1 tsp dried oregano in a large bowl until evenly coated.
2. Step 2: Spread vegetables in a single layer on a parchment-lined baking sheet. Roast for 25 minutes, flipping halfway through, until edges are golden and tender when pierced with a fork.
3. Step 3: Remove from oven and drizzle with 2 tbsp balsamic vinegar. Return to oven for 3 more minutes until vinegar reduces into a glossy glaze.
4. Step 4: Transfer to a serving dish and let cool for 5 minutes before serving. The vegetables should be tender-crisp with caramelized edges and a sweet-tart glaze.