I use this recipe:
http://allrecipes.com//Recipe/sloppy...ii/Detail.aspx

Except, I leave out the brown sugar (not a fan of the sweet sloppy joes), as well as I leave out the green peppers. Not a big fan of those either. So normally I'll prepare the 1/4 cup of onions (or probably more cause onions are BOMB) and put those in a small tupperware container. Then put the ketchup, mustard, garlic powder, and add some fresh minced garlic and pepper in another small container. Place the above ingredients in your cooler and prepare when your stomach is growling. You'll be satisfied for sure.
A good side dish with the joes is a nice baked potato.