Spinach Casserole - cooking recipe

Ingredients

2 pkg. frozen chopped spinach, thawed
1 1/2 to 2 lb. ground chuck
2 cans mushrooms
1 chopped onion
salt
pepper
1 can celery soup
1 c. sour cream
2 tsp. garlic salt
8 oz. Mozzarella cheese, shredded

Preparation

Brown meat with chopped onion, salt and pepper; drain.
Add spinach and mushrooms to skillet and cook for 20 minutes.
Mix soup, sour cream, garlic salt and 6 ounces Mozzarella cheese.
Add mixture to meat and spinach and put in a baking dish.
Sprinkle additional cheese on top.
Bake at 250\u00b0 for 30 to 45 minutes.