Ground Beef and Potato Pie

1 sm. onion
2 sm. carrots
3/4 lb. ground beef, seasoned with
salt & pepper
3 tbsp. butter
3 tbsp. flour
2 c. seasoned mashed potatoes

Cook onions and carrots in salted and boiling water; drain. Season beef and form into 8 balls. Brown in fat placed in casserole. To make gravy, add flour to drippings; brown. Add 1 1/2 cups liquid, using any left from cooking vegetables. Stir until thickened. Add to the meatballs, gravy, onions and carrots. Cover with the mashed potatoes. Bake in a moderate oven, 350 degrees until brown, about 20 minutes.