2 pkgs. frozen chopped spinach
1 tbsp. onion, minced
1 c. sour cream
2 c. tomato sauce
1/2 c. mushrooms, sliced
1 c. grated Sharp cheese
Buttered crumbs

Cook spinach and onion according to package directions. Drain spinach and onions. Add other ingredients. Bake 20 minutes at 350 degrees. Be sure it's hot when served.