2 lbs. hamburger
1/2 tsp. celery seeds
1/2 c. crackers, crushed
1 egg
1/2 c. ketchup
1 sm. chopped onion, if desired

Mix all ingredients in a large bowl. Preheat oven to 400 degrees. Shape meatloaf in pan. Bake for about 30 to 45 minutes, depending on the oven. When meatloaf is about done, take it out of the oven and put a line of ketchup on meatloaf. Place back in the oven for the remainder of the time.