Aunt Rita's Meatloaf

1 1/2 lb ground beef
1 egg
3/4 cup oats
3/4 cup milk
1 1/2 tsp salt
1/4 cup butter
1/4 cup chopped onion

Mix together and put in pan.

Topping
2 T brown sugar
1/3 cup ketchup
1 T mustard

Mix together and top the meatloaf

Bake 350 degrees for 1 hr.