Add ground beef to large skillet, and brown over medium heat.
Drain browned ground beef, and return to pan along with onion and bell pepper.
Cook, stirring regularly, until vegetables are just softened, about 2-3 minutes.
Add beef and vegetable mixture to slow cooker along with remaining ingredients.
Stir to combine.
Cover, and cook on LOW for 3-4 hours.
*We like our sloppy joes a little on the sweeter side. If you don't, try starting with half the brown sugar (2 tablespoons - unpacked), and go from there by taste.**There is no kick to this recipe. If you like a little more heat, increase the chili powder to taste.***Nutrition values are estimates.