3-4 slices bacon
1 sm. onion
2 cans green beans
1 sm. can button mushrooms
1 can cream of mushroom soup
Salt
Pepper
Sharp cheese, grated

Preheat oven to 350 degrees. Fry bacon until crisp and break in small pieces. Chop onion and saute in bacon drippings. Drain and add green beans. Add bacon and cook slowly for 30 minutes. Add mushrooms, soup, salt and pepper. Pour into buttered casserole dish and top with cheese. Bake until brown and bubbly.