Williams' Rainbow Vegetable Medley

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A vibrant, nutrient-packed medley of seasonal vegetables roasted to caramelized perfection with garlic and herbs — a colorful side dish that complements any main course. This mediterranean-inspired vegetarian ready in about 45 minutes pairs cherry tomatoes, minced garlic, olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 120 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.

★ 3.9 (12 ratings) Prep: 15 min Cook: 30 min Serves 4 Mediterranean cuisine 120 cal/serving
Plan a meal with the AI → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Instructions

  1. Step 1: Preheat oven to 425°F (220°C). Line a large baking sheet with parchment paper.
  2. Step 2: Toss zucchini rounds, bell pepper strips, red onion wedges, and cherry tomatoes with 3 tbsp olive oil, 1 tsp dried oregano, 1/2 tsp salt, and 1/4 tsp black pepper in a large bowl.
  3. Step 3: Spread vegetables in a single layer on the baking sheet, ensuring no overcrowding for even browning.
  4. Step 4: Roast for 25-30 minutes, stirring once halfway through, until vegetables are tender and have golden-brown edges.
  5. Step 5: Remove from oven and immediately stir in minced garlic and 2 tbsp chopped parsley.
  6. Step 6: Let sit for 2 minutes to allow garlic to infuse, then taste and adjust seasoning with extra salt or pepper if needed.

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Bakeware & baking tools → Shop all kitchen tools →

Frequently asked questions

How long does Williams' Rainbow Vegetable Medley take to make?

Total time is about 45 minutes (15 min prep + 30 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Williams' Rainbow Vegetable Medley?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep cherry tomatoes from drying out.

Can I substitute ingredients in Williams' Rainbow Vegetable Medley?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Williams' Rainbow Vegetable Medley for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Williams' Rainbow Vegetable Medley?

Mediterranean vegetarian like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

What others are saying