1 1/2 lbs. hamburger
1 egg
1 tsp. salt
1/4 tsp. pepper
1 c. bread crumbs
1 (4 oz.) can tomato onion sauce

Mix above ingredients together and place in loaf pan.

SAUCE:

1 c. hot water
2 tbsp. vinegar
2 tbsp. prepared mustard
1 1/2 tbsp. brown sugar

Mix together and pour over top of meatloaf. Bake at 350 degrees for 1 hour basting every 15 minutes with sauce.