Onion Casserole - cooking recipe

Ingredients

6 big onions, sliced
1 1/2 sticks butter
1 can cream of mushroom soup
2 bricks Swiss cheese, grated
bread crumbs

Preparation

Saute onions in butter until translucent.
Add soup and grated Swiss cheese (saving some for topping).
Put in 2 or 3-quart casserole dish.
Top with bread crumbs and cheese.
Bake at 350\u00b0 until hot and bubbling.