Baked Eggplant and Cheese Casserole with Tomato Basil Sauce

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A hearty keto casserole layered with tender baked eggplant, rich cheese, and a fragrant tomato basil sauce. This mediterranean-inspired keto (keto, vegetarian) ready in about 55 minutes blends divided olive oil, divided salt, black pepper into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 350 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. 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.

Prep: 15 min Cook: 40 min Serves 4 Mediterranean cuisine 350 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F (200°C). Arrange 2 medium eggplants sliced into 1/2-inch rounds on a baking sheet, brush both sides with 2 tbsp olive oil, and sprinkle with 1/2 tsp salt and 1/4 tsp black pepper.
  2. Step 2: Bake eggplant slices for 20 minutes, flipping halfway, until golden and tender; remove and set aside.
  3. Step 3: Meanwhile, in a saucepan over medium heat, heat 2 tbsp olive oil and add 3 minced garlic cloves; sauté for 1 minute until fragrant.
  4. Step 4: Stir in 6 oz tomato paste, 1/2 cup water, 1 tsp dried oregano, 1/2 tsp salt, and 1/4 cup chopped fresh basil leaves; simmer for 5 minutes until the sauce thickens slightly.
  5. Step 5: In a greased 9x9-inch baking dish, spread a thin layer of tomato basil sauce, then layer half the baked eggplant slices, 3/4 cup shredded mozzarella, and 1/4 cup grated Parmesan.
  6. Step 6: Repeat layering with remaining eggplant slices, sauce, and cheeses.
  7. Step 7: Bake uncovered for 15 minutes until cheese is bubbly and golden on top. Let cool 5 minutes before serving.

Equipment for this recipe

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Frequently asked questions

How long does Baked Eggplant and Cheese Casserole with Tomato Basil Sauce take to make?

Total time is about 55 minutes (15 min prep + 40 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Baked Eggplant and Cheese Casserole with Tomato Basil Sauce?

Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.

Can I substitute ingredients in Baked Eggplant and Cheese Casserole with Tomato Basil Sauce?

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 Baked Eggplant and Cheese Casserole with Tomato Basil Sauce 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 Baked Eggplant and Cheese Casserole with Tomato Basil Sauce keto?

Yes — this recipe is tagged keto, vegetarian, low carb based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.