1 lb. hamburger, browned
1/4 c. chopped onion
1/4 c. chopped green pepper
1/4 c. bread crumbs
1/2 tsp. oregano
1 tsp. salt
1/4 tsp. pepper
1/2 c. tomato sauce

TOPPING:

1 egg, beaten
1/4 c. milk
1/2 tsp. salt
1/2 tsp. mustard
1/2 tsp. Worcestershire sauce
8 oz. grated cheese sauce

Mix browned hamburger and other ingredients and pour into unbaked pie shell. Mix topping ingredients and pour over first mixture. Bake at 425 degrees for 30 minutes.