Spinach Fondondo - cooking recipe

Ingredients

1 large onion, chopped
2 cloves garlic
1 lb. ground beef
1 (6 or 8 oz.) can mushrooms, drained
salt and pepper to taste
1 to 1 1/2 tsp. oregano
2 pkg. frozen chopped spinach
1 can celery soup
1 c. sour cream
sliced Mozzarella cheese

Preparation

Combine the first 6 ingredients.
Add the spinach; cover pan and cook until thawed.
Add the soup and sour cream; mix thoroughly.
Transfer to buttered casserole.
Arrange sliced cheese on top.
Bake at 350\u00b0 for 15 to 20 minutes.