Shepherd's Pie

From:–allrecipies.com I use less gravy than the linked recipe.

1 (7 oz) pkg potato flakes
2 pounds lean ground beef
1 onion, finely diced
1 (15oz) can whole kernel corn, drained
1 (15 oz) can green beans, drained
2 (10.5 oz) cans brown gravy
salt and pepper to taste
2 cups grated cheddar cheese
Preheat oven to 350 degrees.
Prepare potatoes according to directions on box. Set aside.
In a large skillet, saute ground beef over medium heat for 1 minute. Add onion to skillet and continue to cook until brown. Drain grease.

Add corn, green beans, and gravy to skillet. Mix thoroughly. Add salt and pepper to taste. Pour mixture into a 9x13 inch baking dish. Spread potatoes over top. Sprinkle cheese over potatoes.
Bake in preheated oven for 40 minutes, until cheese turns golden brown.