Oven-Baked Ratatouille with Roasted Garlic and Herbs
Colorful oven-baked ratatouille bursting with roasted garlic and fresh herbs for a rustic vegetable dish. This french-inspired vegetarian (vegetarian) ready in about 45 minutes pairs large, chopped red bell pepper, large, chopped yellow bell pepper, 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 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
- 1 medium (about 1 lb), cut into 1-inch cubes eggplant
- 2 medium, cut into 1/2-inch slices zucchini
- 1 large, chopped red bell pepper
- 1 large, chopped yellow bell pepper
- 1 medium, diced yellow onion
- 6 cloves, minced garlic cloves
- 4 tbsp olive oil
- 1 tsp dried thyme
- 1 tsp dried oregano
- 1 tsp salt
- 1/2 tsp black pepper
- 1/4 cup, chiffonade fresh basil leaves
- 2 tbsp tomato paste
Instructions
- Step 1: Preheat oven to 400°F. In a large mixing bowl, combine 1 medium cubed eggplant, 2 medium sliced zucchini, 1 large chopped red bell pepper, 1 large chopped yellow bell pepper, and 1 diced medium yellow onion.
- Step 2: Add 6 minced garlic cloves, 4 tbsp olive oil, 1 tsp dried thyme, 1 tsp dried oregano, 1 tsp salt, and 1/2 tsp black pepper to the vegetables. Toss thoroughly to coat.
- Step 3: Spread the vegetable mixture evenly on a large rimmed baking sheet and roast for 25 minutes, stirring halfway through, until vegetables are tender and edges are slightly caramelized.
- Step 4: Remove from oven, stir in 2 tbsp tomato paste until evenly combined, then return to oven for 5 more minutes to meld flavors.
- Step 5: Remove from oven and sprinkle 1/4 cup chiffonade fresh basil leaves over the ratatouille before serving warm as a side or main vegetable dish.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Oven-Baked Ratatouille with Roasted Garlic and Herbs 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 Oven-Baked Ratatouille with Roasted Garlic and Herbs?
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 yellow onion from drying out.
Can I substitute ingredients in Oven-Baked Ratatouille with Roasted Garlic and Herbs?
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 Oven-Baked Ratatouille with Roasted Garlic and Herbs 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.
Is Oven-Baked Ratatouille with Roasted Garlic and Herbs vegetarian?
Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
