Oven-Baked Cheesy Corn and Spinach Casserole

If you’re craving a warm, comforting dish that’s full of flavor, this Oven-Baked Cheesy Corn and Spinach Casserole is a must-try. Creamy, cheesy, and packed with nutritious spinach and sweet corn, this casserole is the perfect side dish for family dinners, holidays, or potlucks. It’s simple to prepare, versatile, and guaranteed to be a crowd-pleaser.

Why This Casserole is a Family Favorite

Casseroles are loved for their ease and comfort, and this recipe combines two ingredients everyone enjoys—spinach and corn. The natural sweetness of corn pairs beautifully with the earthy flavor of spinach, while the creamy cheese sauce ties everything together. Plus, this recipe is easy to make ahead, making it a practical choice for busy weeknights or festive gatherings.

Recipe: Oven-Baked Cheesy Corn and Spinach Casserole

Ingredients

2 cups frozen or canned corn (drained if canned)
2 cups fresh spinach, chopped (or 1 cup frozen, thawed and drained)
1 cup shredded cheddar cheese
½ cup mozzarella cheese
1 cup milk
2 tbsp butter
2 tbsp all-purpose flour
½ tsp garlic powder
½ tsp onion powder
Salt and pepper, to taste
½ cup breadcrumbs (optional, for topping)

Instructions

Preheat the Oven: Set your oven to 375°F (190°C) and lightly grease a medium baking dish.
Make the Cheese Sauce: In a saucepan, melt butter over medium heat. Whisk in flour to form a roux. Slowly add milk while whisking until the sauce thickens. Stir in cheddar and mozzarella cheeses, reserving a little for topping. Season with garlic powder, onion powder, salt, and pepper.
Combine the Vegetables: In a large bowl, mix corn and spinach together. Pour the cheese sauce over and stir until everything is evenly coated.
Assemble the Casserole: Transfer mixture into the prepared baking dish. Sprinkle the top with remaining cheese and breadcrumbs (if using).
Bake: Place in the oven and bake for 25–30 minutes, or until bubbly and golden brown on top.
Serve: Let the casserole cool for 5 minutes before serving warm.

Tips and Variations

Make It Spicy: Add diced jalapeños or a pinch of red pepper flakes for heat.
Different Cheeses: Try Monterey Jack, gouda, or parmesan for a flavor twist.
Protein Boost: Stir in cooked shredded chicken, ground turkey, or bacon for a heartier dish.
Gluten-Free Option: Replace flour with cornstarch and use gluten-free breadcrumbs.
Meal Prep Friendly: Prepare the casserole ahead of time, refrigerate, and bake just before serving.

Conclusion

This Oven-Baked Cheesy Corn and Spinach Casserole is the ultimate comfort food—creamy, cheesy, and loaded with veggies. It’s easy to prepare, adaptable to different tastes, and perfect for both weeknight meals and holiday feasts. Serve it alongside roasted meats, grilled chicken, or simply enjoy it as a vegetarian main dish. Once you try it, this casserole might just become a family favorite.