2 1/2 cups pre-cooked ground beef
1 cup ketchup
1/2 cup brown sugar
1/4 cup soy sauce
1/4 cup yellow mustard
2 TBSP onion powder
2 TBSP garlic powder
6 oz tomato paste
Place all ingredients into gallon-sized freezer bags.
Seal, remove all air, and freeze flat.
Set out from the freezer into the refrigerator the day before you need it.
To cook, put Sloppy Joes in slow cooker and cook on LOW for 4 hours.