1 pie shell, unbaked
1 lb. ground beef
1/2 tsp. oregano
1/4 c. chopped onion
1/4 c. green pepper (chopped)
1/2 c. bread crumbs
1 (8 oz.) can tomato sauce

CHEESE TOPPING:

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

Heat oven to 400 degrees. Brown beef. Mix rest of ingredients except cheese topping. Simmer for a few minutes. Spread mixture into pie shell.

Mix topping ingredients and spread over meat mixture. Bake for 30 minutes. Cover with foil after 10 minutes so cheese doesn't burn.