1-2 cans string beans, drained
1 med. onion, sliced
1 (14 1/2 oz.) can stewed tomatoes, drained (may use Creole, Italian, Mexican, etc.)
Mushrooms, fresh or canned
Salt & pepper to taste
Bread crumbs, Italian or plain

Layer ingredients. Sprinkle bread crumbs on top. Bake 30-45 minutes at 350 degrees.