Hamburger Casserole - cooking recipe

Ingredients

1 lb. hamburger, seasoned with salt and pepper
1 onion, chopped fine
2 pieces celery, diced
1 egg
2 Tbsp. milk

Preparation

Add all ingredients together, mix and set aside 1/4 of the mixture.
Line a medium-sized casserole with remaining mixture. Add your favorite filling recipe, then put the rest of the hamburger mixture over the top of the filling.
Bake at 350\u00b0 for 30 to 40 minutes or until hamburger is finished.