Hamburger Pie

Directions

1. 1
   Cook potatoes in boiling salted water until tender, about 20 minutes; drain.
2. 2
   Meanwhile, in large frying pan, cook ground beef and onion until meat is lightly browned and onion is tender; drain off fat.
3. 3
   Stir in green beans, tomato soup, water, salt and pepper.
4. 4
   Turn mixture into a 1 1/2 quart casserole.
5. 5
   Mash potatoes while hot; blend in egg.
6. 6
   Add enough milk to make potatoes fluffy.
7. 7
   Season potatoes to taste with salt and pepper.
8. 8
   Spread or drop potato mixture on top of meat mixture.
9. 9
   Sprinkle with cheese.
10. 10
    Bake, uncovered, at 350 degrees for 20 to 25 minutes until cheese is melted and sauce is bubbly.