This easy Cheeseburger Pie recipe is one I'd seriously consider one of the best comfort foods around. Ground beef, mashed potatoes, green beans, and melted cheese. Kinda like Shepherd's pie on steroids :)!
Preheat oven to 350 degrees and grease a 2 or 3 quart baking dish.
Heat some oil in a skillet and start cooking the onions. After a minute or two, add the ground beef. Cook until meat is browned and the onions are soft - about 5-7 minutes. Drain.
Add the soup and green beans. Season with salt and pepper to taste and cook, mixing thoroughly until the soup and beans are warm.
Add the meat and bean mixture to the greased baking dish.
Mash the potatoes and add the warm milk and egg. Mix thoroughly.
Add the potatoes on top of the meat in the baking dish. Evenly spread the potatoes over the meat.
Sprinkle the cheese on top of the potatoes and bake for 25-30 minutes.