Veggie-Loaded Sloppy Joes | NDSU Agriculture

Ingredients

• Vegetable oil cooking spray
• 1 pound extra-lean ground beef
• 1 small green bell pepper, diced
• 1 small red bell pepper, diced
• 1 small onion, diced
• 1 tablespoon white vinegar
• ¾ cup ketchup
• 2 tablespoons mustard
• 6 whole-grain or mixed-grain sandwich buns
• 1 small white or red onion, sliced (optional)