Hamburger Pie

1 lb of Hamburger
1 onion
2 cans of french cut green beans
2 cans of tomato soup
1 1/2 lbs of red potatoes (made into mashed potatoes)
1 cup shredded cheese

Brown hamburger adding onion half way... Add tomato soup and green beans mixing together well.. In a baking dish pour meat mixture, topping with the mashed potatoes and sprinkle with cheese.. Place in the oven at 350F until the cheese is melted..