1 (8 oz.) can tomato sauce
1/4 c. brown sugar
1/4 c. vinegar
1 tsp. prepared mustard
1 egg, slightly beaten
1 med. onion, minced
1/4 c. cracker crumbs
2 lbs. ground beef
1 1/2 tsp. salt
1/4 tsp. pepper

Microwave on high. Combine tomato sauce, brown sugar, vinegar, and mustard in a small bowl. Set aside. Combine egg, onion, cracker crumbs, ground beef, salt, and pepper in a mixing bowl. Add 1/2 cup of the tomato mixture and blend thoroughly. Shape into an oval loaf and place in an oblong baking dish. Make a depression in top of loaf. Pour remaining tomato sauce over top of meat. Cook uncovered for 18-20 minutes or until center of loaf is cooked. Cover meat and let stand about 10 minutes before serving.