A delicious, comforting baked casserole made with tender roasted eggplant, sweet corn, creamy cheese, garlic, and aromatic herbs. Everything is layered together and baked until golden, bubbly, and perfectly cheesy.

This easy vegetarian dish is perfect for family dinners, Mediterranean-inspired meals, holiday gatherings, or a satisfying meat-free side dish.

Prep Time: 20 minutes
Cook Time: 35–40 minutes
Total Time: 55–60 minutes
Servings: 6
Course: Main Dish / Side Dish
Cuisine: Mediterranean-inspired
Diet: Vegetarian
Ingredients
For the Eggplant

  • 2 medium eggplants, cut into ½-inch cubes
  • 2 tablespoons olive oil
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • ½ teaspoon paprika
    For the Corn Mixture
  • 2 cups sweet corn kernels, fresh or frozen
  • 1 small onion, finely chopped
  • 3 cloves garlic, minced
  • 1 tablespoon olive oil
  • ½ teaspoon dried oregano
  • ¼ teaspoon chili flakes, optional
  • ¼ teaspoon black pepper
  • 2 tablespoons fresh parsley, chopped
    For the Creamy Cheese Sauce
  • ¾ cup heavy cream
  • ½ cup milk
  • 1 large egg
  • ½ cup grated Parmesan cheese
  • ½ teaspoon Italian seasoning
  • ¼ teaspoon garlic powder
  • Salt and pepper, to taste
    For the Cheesy Topping
  • 1 cup shredded mozzarella cheese
  • ¼ cup grated Parmesan cheese
  • 2 tablespoons breadcrumbs
  • 1 tablespoon chopped fresh parsley
    Instructions
    Step 1: Prepare the oven
    Preheat your oven to 400°F (200°C).

Lightly grease a medium-sized baking dish with olive oil or cooking spray.
Step 2: Prepare the eggplant
Wash and dry the eggplants.

Cut them into evenly sized ½-inch cubes.

Place the eggplant pieces in a large bowl.

Add olive oil, salt, black pepper, and paprika.

Toss until all the pieces are evenly coated.
Step 3: Roast the eggplant
Spread the seasoned eggplant in a single layer on a baking sheet.

Roast for 20–25 minutes, turning halfway through, until tender and lightly golden.

Remove from the oven and set aside.
Step 4: Cook the corn mixture
Heat 1 tablespoon olive oil in a large skillet over medium heat.

Add the chopped onion and cook for 3–4 minutes until softened.

Add the minced garlic and cook for another 30 seconds.

Stir in the sweet corn, oregano, black pepper, and optional chili flakes.

Cook for 4–5 minutes until the corn is heated through.

Remove from heat and stir in the fresh parsley.
Step 5: Prepare the creamy cheese sauce
In a medium mixing bowl, whisk together the heavy cream, milk, and egg.

Add the grated Parmesan, Italian seasoning, garlic powder, salt, and black pepper.

Whisk until smooth and well combined.
Step 6: Assemble the gratin
Reduce the oven temperature to 375°F (190°C).

Arrange the roasted eggplant evenly in the prepared baking dish.

Spread the cooked corn mixture over the eggplant.

Pour the creamy cheese sauce evenly over the vegetables.

Gently stir or shake the dish so the sauce settles between the vegetables.
Step 7: Add the cheesy topping
Sprinkle the shredded mozzarella evenly over the top.

Add the remaining Parmesan cheese.

Finish with breadcrumbs for a lightly crispy golden crust.
Step 8: Bake until golden
Place the baking dish in the preheated oven.

Bake uncovered for 25–30 minutes, until the cheese is melted, bubbling, and golden brown.

If the top needs additional browning, broil for 1–2 minutes, watching carefully.

The center should be fully set and reach 160°F (71°C) because the sauce contains egg.
Step 9: Rest before serving
Remove the gratin from the oven.

Allow it to rest for 10 minutes so the creamy sauce can settle and the slices hold together better.

Sprinkle with fresh parsley.
Step 10: Serve
Spoon generous portions onto serving plates.

Serve warm with a fresh Mediterranean salad, grilled chicken, roasted vegetables, or crusty bread.

Enjoy this creamy, cheesy, and flavorful eggplant gratin!
Helpful Tips

  • Remove excess moisture: Salt the eggplant lightly and let it sit for 15–20 minutes if it tends to be watery. Pat dry before roasting.
  • Roast before baking: This helps the eggplant develop flavor and prevents a soggy gratin.
  • Use fresh corn: Fresh sweet corn gives a delicious natural sweetness, but frozen corn works perfectly too.
  • Choose good melting cheese: Mozzarella gives a stretchy, creamy topping.
  • Add extra flavor: A little smoked paprika, basil, or thyme works beautifully.
  • Make it spicy: Add red pepper flakes or a pinch of cayenne.
  • Let it rest: Resting helps the sauce thicken and makes serving easier.
  • Make ahead: Roast the eggplant and prepare the corn mixture a day ahead. Assemble and bake when ready.
    Nut Information & Allergens
    Nut Information
    Nut Included?
    Peanuts No
    Almonds No
    Walnuts No
    Cashews No
    Pistachios No
    Pecans No
    Hazelnuts No

No nuts in listed ingredients
Other Allergens

  • Dairy: Heavy cream, milk, mozzarella, and Parmesan.
  • Eggs: One egg in the creamy sauce.
  • Gluten: Breadcrumbs may contain wheat.
  • Possible soy: Check packaged cheese and breadcrumbs for added ingredients.
    Nut-free note: This recipe contains no nuts in its listed ingredients. Always check ingredient labels for possible cross-contact warnings, especially if preparing it for someone with a serious nut allergy.
    Dietary Variations
  • Gluten-free: Use certified gluten-free breadcrumbs.
  • Low-carb: Omit the breadcrumbs and use extra Parmesan on top.
  • Vegetarian: Use vegetarian-friendly Parmesan made without animal rennet.
  • Lighter version: Replace heavy cream with milk or unsweetened evaporated milk.
    Nutrition Information
    Estimated per serving, based on 6 servings. Values vary depending on cheese and cream brands.
    Nutrient Approximate Amount
    Calories 320–370
    Protein 14–17 g
    Carbohydrates 20–24 g
    Fat 21–25 g
    Fiber 4–6 g
    Sugar 7–9 g
    Saturated Fat 10–13 g

Q&A
Q: What is Cheesy Baked Corn and Eggplant Gratin?

A: It is a baked vegetarian casserole made with tender eggplant, sweet corn, creamy cheese sauce, and a golden mozzarella and Parmesan topping.

Q: Do I need to peel the eggplant?

A: No. The skin becomes tender during roasting and helps the eggplant hold its shape. However, you can peel it if preferred.

Q: Can I use frozen corn?

A: Absolutely! Thaw and drain the corn before adding it to the skillet.

Q: Can I make this recipe without heavy cream?

A: Yes. Use whole milk or evaporated milk instead. The sauce will be less rich but still delicious.

Q: Can I add other vegetables?

A: Yes! Zucchini, spinach, mushrooms, bell peppers, and cherry tomatoes are excellent additions.

Q: Can I add chicken to this gratin?

A: Yes. Add cooked shredded or diced chicken to make it a more protein-rich main dish.

Q: Why is my eggplant gratin watery?

A: Eggplant releases moisture during cooking. Roast it before assembling, avoid overcrowding the baking sheet, and drain excess liquid from the vegetables.

Q: Can I prepare this dish ahead of time?

A: Yes. Prepare the roasted eggplant and corn mixture ahead. Refrigerate them separately, then assemble with the sauce and bake when ready.

Q: Can I freeze Cheesy Corn and Eggplant Gratin?

A: Yes, although the creamy sauce may change texture slightly after freezing. Cool completely, wrap tightly, and freeze for up to 2 months.

Q: How do I store leftovers?

A: Store in an airtight container in the refrigerator for 3–4 days. Reheat in the oven at 350°F (175°C) until heated through.

Q: Is this recipe gluten-free?

A: It can be made gluten-free by using certified gluten-free breadcrumbs or omitting them entirely.

Q: Is this recipe suitable for a low-carb diet?

A: It can fit some lower-carb eating plans. Omit the breadcrumbs and use a moderate portion of corn, as corn contains carbohydrates.

Q: Is this recipe suitable for a low-sodium diet?

A: It can be adapted by reducing added salt and choosing lower-sodium mozzarella and Parmesan. Check cheese labels because these ingredients can contribute significant sodium.

Q: What can I serve with eggplant gratin?

A: Serve with grilled chicken, baked fish, Greek salad, roasted vegetables, or garlic bread.