Tater Tot Hotdish 30 May 12

1 bag tater tots
1 can green beans
1 can mushroom soup
1/2 cup onion, diced
1 lb hamburger
1 cup of your favorite cheese

Fry hamburger and onion together; drain. Mix with green beans and soup in a 9×13 inch ungreased pan. Sprinkle grated cheese over this. Top with tater tots. Bake at 350 degrees for 1/2 hour.