Make mine from what is on hand.
Buy a good burger, 2 or so lbs.
2 eggs
3/4 C applesauce about a 1/4 c or so per lb It is a feel to not be sloppy,
chopped onion
some ketchup
salt and pepper
bread crumbs

My Dad loved elbow noodles too, cooked & drained ones added.

The special hidden ingrediant family fav, peel a hard boiled egg and place it in the loaf for suprize slice of it.