Classic Roasted Vegetable Ratatouille
A vibrant medley of eggplant, zucchini, bell peppers, and tomatoes roasted with herbs to create a rich and colorful vegetable dish bursting with Mediterranean flavors. This french-inspired vegetarian ready in about 45 minutes pairs medium, diced tomatoes, olive oil, medium, diced yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 150 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
- 1 medium (about 1 lb), diced into 1-inch cubes eggplant
- 2 medium, diced into 1-inch cubes zucchini
- 1 large, diced into 1-inch pieces red bell pepper
- 1 large, diced into 1-inch pieces yellow bell pepper
- 4 medium, diced tomatoes
- 4 tbsp olive oil
- 1 medium, diced yellow onion
- 3, minced garlic cloves
- 1 tbsp, chopped fresh thyme
- 2 tbsp, chopped fresh basil
- 1 1/2 tsp salt
- 1 tsp black pepper
Instructions
- Step 1: Preheat oven to 400°F. In a large mixing bowl, toss 1 medium diced eggplant, 2 medium diced zucchini, 1 large diced red bell pepper, 1 large diced yellow bell pepper, and 4 diced medium tomatoes with 4 tbsp olive oil, 1 1/2 tsp salt, and 1 tsp black pepper until all vegetables are evenly coated.
- Step 2: Spread the vegetables in an even layer on a large rimmed baking sheet. Roast in the preheated oven for 25 minutes, stirring halfway through, until vegetables are tender and edges are caramelized.
- Step 3: While vegetables roast, heat a small skillet over medium heat and add 1 tbsp olive oil, 1 diced medium yellow onion, and 3 minced garlic cloves. Sauté for 5 minutes until onion is translucent and garlic fragrant.
- Step 4: Remove roasted vegetables from the oven and transfer to a large serving dish. Stir in the sautéed onion and garlic mixture along with 1 tbsp chopped fresh thyme and 2 tbsp chopped fresh basil.
- Step 5: Adjust seasoning with additional salt and pepper if desired. Serve warm or at room temperature as a side or main dish with crusty bread.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Classic Roasted Vegetable Ratatouille 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 Classic Roasted Vegetable Ratatouille?
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 medium, diced tomatoes from drying out.
Can I substitute ingredients in Classic Roasted Vegetable Ratatouille?
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 Classic Roasted Vegetable Ratatouille for a different number of people?
The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). 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 Classic Roasted Vegetable Ratatouille?
French 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.
