Chicken and Spinach Casserole

Preheat oven to 375ºF.

Saute mushrooms until golden brown. Add diced onion and olive oil and cook until translucent.

Defrost spinach and drain well. Mix onion with the spinach and mushrooms. Put mixture into a baking dish and sprinkle with garlic powder. Add melted butter on top.

Place the chicken breasts on top and rub them with olive oil. Sprinkle with salt and pepper. Roast for 35 to 40 minutes, or until cooked through.

Top with cheese and continue cooking until cheese is melted. I like to broil the casserole once the cheese on is until it is a pretty color. (You can also top it with some marinara sauce.)