Delicious Baked Spinach-Cheese Casserole - cooking recipe

Ingredients

4 tablespoons butter
1 small onion, finely chopped
1/2 lb fresh mushrooms, sliced
3 garlic cloves, minced (or to taste)
2 cups light cream
2 (10 ounce) packages frozen spinach, thawed and squeezed dry
1/4 cup grated parmesan cheese (or to taste)
3 tablespoons all-purpose flour
1 teaspoon salt, to taste (I use seasoned salt)
1/4 teaspoon nutmeg
fresh ground black pepper
3/4 cup grated gruyere cheese or 3/4 cup swiss cheese, divided

Preparation

Set oven to 325 degrees F.
Grease a 9-inch square baking dish.
Heat butter in a skillet over medium-high heat.
Add in onions, mushrooms and the garlic; stir until softened (about 4 minutes).
Whisk in the flour, salt, pepper and nutmeg, whisk for 2 minutes.
Gradually add in the cream, continue whisking until thick and until the mixture reaches a light boil, remove from heat then mix in 1/4 cup grated Gruyere or Swiss cheese, stir until cheese melts, (taste for extra seasoning).
In the prepared casserole or baking dish spread half of the spinach, then top the spinach with 2 Tbsp grated Parmesan cheese; then cover with half of the mushroom/cream sauce, then repeat.
Sprinkle with 1/2 cup grated Gruyere or Swiss cheese.
Bake for 25-35 minutes, or until hot and bubbly.
Delicious!