Hamburger Pie Casserole

Directions

1. 1
   Cook hamburg and onion until done with salt and pepper.
2. 2
   Add drained beans and tomato soup.
3. 3
   Pour into greased 1 1/2 -quart casserole.
4. 4
   Add the mashed potatoes (which are made with milk and 1 beaten egg and whipped until light and fluffy).
5. 5
   Spoon mounds of potatoes on top of meat mixture.
6. 6
   Bake at 350° for 30 minutes.