Description
This Spinach and Cheese Casserole is a deliciously creamy and cheesy baked side dish featuring tender spinach blended with eggs, milk, and a mix of mozzarella and Parmesan cheeses. It’s seasoned with garlic, onions, nutmeg, and a hint of black pepper, topped with optional crispy breadcrumbs for a golden finish. Perfect for an easy, comforting vegetarian meal or side.
Ingredients
Scale
Main Ingredients
- 2 tablespoons unsalted butter
- 1 small onion, finely chopped
- 2 cloves garlic, minced
- 2 (10-ounce) packages frozen chopped spinach, thawed and well-drained
- 4 large eggs
- 1 cup whole milk
- 1/2 cup sour cream
- 1 cup shredded mozzarella cheese
- 1/2 cup grated Parmesan cheese
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/4 teaspoon ground nutmeg
Optional Topping
- 1/2 cup breadcrumbs
- 1 tablespoon olive oil
Instructions
- Preheat and Prepare Dish: Preheat your oven to 375°F (190°C) and lightly grease a 9×9-inch baking dish to ensure the casserole doesn’t stick.
- Sauté Aromatics: In a skillet over medium heat, melt the butter. Add the finely chopped onion and cook for 4 to 5 minutes until softened and translucent. Stir in the minced garlic and cook for an additional minute to release its aroma, then remove from heat.
- Mix Wet Ingredients and Seasoning: In a large mixing bowl, whisk together the eggs, whole milk, sour cream, salt, black pepper, and ground nutmeg until thoroughly combined.
- Combine Spinach and Cheese: Stir the sautéed onion and garlic into the egg mixture. Gently fold in the well-drained spinach along with shredded mozzarella and grated Parmesan cheese until evenly incorporated.
- Assemble Casserole: Pour the spinach and cheese mixture into the prepared baking dish, smoothing the top with a spatula for even baking.
- Add Breadcrumb Topping (Optional): If using, mix the breadcrumbs with olive oil and sprinkle this mixture evenly over the top of the casserole to add a crunchy golden crust.
- Bake: Place the baking dish in the preheated oven and bake for 30–35 minutes. Bake until the casserole is set in the center and the top is a beautiful golden brown.
- Cool and Serve: Allow the casserole to cool for 5–10 minutes before slicing and serving. This rest time helps it set and makes serving easier.
Notes
- Ensure the spinach is thoroughly drained to prevent a watery casserole.
- For added flavor, try mixing in crumbled feta or shredded cheddar cheese.
- This casserole can be prepared ahead of time and reheated for convenience.
