Heavenly Onion Casserole - cooking recipe

Ingredients

2 Tbsp. margarine
3 medium sweet onions, sliced
8 oz. fresh mushrooms, sliced
1 c. shredded Swiss cheese
1 can mushroom soup
1 (5 oz.) can condensed milk
2 tsp. soy sauce
6 to 8 slices French bread (1/2 inch thick)
6 to 8 slices Swiss cheese

Preparation

Saute onions and mushrooms in butter until tender.
Place in 2-quart casserole.
Sprinkle shredded cheese on top.
Combine milk, soup and soy sauce and pour over cheese.
Top with bread and cheese slices.
Cover and refrigerate 4 hours or overnight.
Bake loosely covered at 375\u00b0 for 30 minutes.
Uncover and bake 15 to 20 minutes longer.