Vintage Collectible Vegetable Medley with Balsamic Reduction

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · Published 2026-04-07 · Updated 2026-04-07

A vibrant seasonal vegetable medley roasted to caramelized perfection, finished with a glossy balsamic reduction that transforms humble produce into an elegant side dish. This mediterranean-inspired vegetarian ready in about 40 minutes pairs sliced into 1/2-inch wedges red onion, olive oil, balsamic vinegar for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 140 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 medium, sliced into 1/2-inch rounds zucchini
• 2 medium, sliced into 1/2-inch rounds yellow squash
• 1, diced into 1/2-inch pieces red bell pepper
• 1/2, sliced into 1/2-inch wedges red onion
• 2 tbsp olive oil
• 3 tbsp balsamic vinegar
• 1 clove, minced garlic
• 1/2 tsp dried oregano
• 1/4 tsp salt
• 1/8 tsp black pepper

Instructions

1. Step 1: Preheat oven to 425°F. In a large bowl, toss 2 medium sliced zucchini, 2 medium sliced yellow squash, 1 diced red bell pepper, and 1/2 sliced red onion with 2 tbsp olive oil, 1/4 tsp salt, and 1/8 tsp black pepper until evenly coated.
2. Step 2: Spread vegetables in a single layer on a parchment-lined baking sheet. Roast for 20 minutes, stirring once halfway through, until vegetables are tender-crisp with golden edges.
3. Step 3: While vegetables roast, whisk together 3 tbsp balsamic vinegar, 1 minced garlic clove, and 1/2 tsp dried oregano in a small saucepan. Simmer over medium heat for 5-7 minutes until reduced by half and thickened to a syrupy consistency that coats the back of a spoon.
4. Step 4: Remove vegetables from oven and drizzle with the warm balsamic reduction. Toss gently to coat, then serve immediately while still warm.