1 lb. hamburger, browned
3 Irish potatoes, sliced
1 can mushroom soup, condensed
1 lg. onion, sliced

Brown hamburger. Layer in casserole dish hamburger, onion and potatoes. Continue to layer until all ingredients have been used. Pour 1 can of mushroom soup over top. Bake at 350 degrees for approximately 1 hour until potatoes are cooked.