1 1/2 lb. hamburger
1 lg. onion
2 c. grated cheese
1 can cream of mushroom soup
Squash

Slice squash and make 3 layers on bottom of casserole dish. Slice onion and pull into rings. Put layer of onion rings, layer of cheese, 1/2 hamburger. Repeat onion, cheese and hamburger. Pour soup over top. Bake at 350 degrees for 30-45 minutes.