Vegetarian Classic Ratatouille

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

A vibrant Provençal vegetable medley baked to perfection, featuring eggplant, zucchini, and tomatoes in a herby tomato base. This mediterranean-inspired vegetarian (vegetarian) ready in about 65 minutes pairs medium, sliced eggplant, medium, sliced zucchini, medium, sliced tomatoes for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 300 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.

★ 3.5 (13 ratings) Prep: 20 min Cook: 45 min Serves 6 Mediterranean cuisine 300 cal/serving

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Ingredients

1 medium, sliced eggplant
2 medium, sliced zucchini
3 medium, sliced tomatoes
1 medium, chopped onion
3 cloves, minced garlic
4 tbsp olive oil
2 tbsp tomato paste
1 tsp dried thyme
1/2 tsp dried rosemary
1 tsp salt
3 tbsp, chopped fresh basil

Instructions

Step 1: Preheat oven to 375°F. Lightly salt 1 medium sliced eggplant and 2 sliced zucchini, then let sit for 10 minutes to draw out moisture; pat dry with paper towels.
Step 2: Heat 2 tbsp olive oil in a large skillet over medium heat, add 1 chopped onion and 3 minced garlic cloves, and cook for 5 minutes until golden and soft.
Step 3: Stir in 2 tbsp tomato paste, 1 tsp dried thyme, 1/2 tsp dried rosemary, and 1 tsp salt, cooking for 1 minute until fragrant.
Step 4: Layer 1/3 of the tomato slices, then 1/3 of the eggplant, zucchini, and remaining vegetables in a 9x13-inch baking dish, drizzling with 2 tbsp olive oil and sprinkling with 1 tsp salt.
Step 5: Pour the onion-tomato mixture evenly over the vegetables, then bake uncovered for 35-40 minutes until vegetables are tender and edges are golden.
Step 6: Sprinkle with 3 tbsp chopped fresh basil before serving, letting it rest for 5 minutes to set.

Equipment for this recipe

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Frequently asked questions

How long does Vegetarian Classic Ratatouille take to make?

Total time is about 65 minutes (20 min prep + 45 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 Vegetarian Classic 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, sliced eggplant from drying out.

Can I substitute ingredients in Vegetarian Classic 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 Vegetarian Classic 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.

Is Vegetarian Classic Ratatouille 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.