Slow Cooker Sloppy Joes

I love sloppy joes and like to try different recipes.  This is easy and tasty.  Pop this in the slow cooker and run out for some buns and you're all set.

2lbs. ground beef
1 C. chopped green pepper
2/3 C. chopped onion
2 C. ketchup
2 envelopes sloppy joe mix
1/2 C. packed brown sugar
1 tsp. prepared mustard
12 hamburger buns, split

In a large skillet, cook the beef, pepper and onion over medium heat until the meat is not longer pink; drain.  Stir in the ketchup, sloppy joe mix, brown sugar and mustard.

Transfer to a slow cooker.  Cover and cook on low for 4 hours or until flavors are blended.  Spoon 1/2 C. meat mixture onto each bun.