Seven Flavor Hamburger (Freezer Meal)

This is another meal from my freezer swap and Mike really, really liked it! I thought the flavor was great, I'm just not as big of a meat person. It is nice that it is versatile and can be served in more than one way!

Ingredients:
1 pound ground beef
1/2 cup chopped onion
1/4 cup chopped celery
1/4 cup chopped green bell pepper
1 teaspoon salt
1 pinch ground black pepper
1/3 cup ketchup
1 tablespoon white vinegar
1 tablespoon white sugar
2 tablespoons Worcestershire sauce
1 (8 ounce) can tomato sauce
6 hamburger buns, split (or noodles or rice)

Prep:
Cook ground beef in a large skillet over medium heat until no longer pink. Stir frequently, and break into pieces. Drain off grease.
Add onion, celery, and green pepper to the skillet, and season with salt and pepper. Cook, stirring until onion is soft, about 5 minutes. Stir in ketchup, vinegar, sugar, Worcestershire sauce, and tomato sauce. Cover, reduce heat to low, and simmer for 20 minutes. To freeze, store meat mixture in gallon size freezer bag, removing all air.

Serve:
Heat meat mixture and serve over hamburger buns or noodles. (We ate ours over rice)