Slow Cooker Sloppy Joes

An easy and delicious dinner for one of those very busy nights!  Enjoy!
-2 lbs lean or extra lean ground beef
-1 green bell pepper, chopped
-1 medium onion, chopped
-2 cups ketchup
-2 (1.31 oz each) dry sloppy joe mix
-2 Tbs packed brown sugar
-1 tsp yellow mustard
-burger buns (about 12)
Place the  beef in a large skillet.  Cook for about 3 minutes.  Add the bell pepper and onion. Cook until beef is no longer pink.
Transfer the mixture with all the juices to your slow cooker.  Add the ketchup, mix, sugar and mustard.  Mix very well.  Cover and cook on low for 3 hours.
Scoop some onto buns and enjoy!