Lentil Sloppy Joes

Ingredients

• 2 Tbsp (30 mL) olive oil
• ½ cup (125 mL) red bell pepper, minced
• 1 cup (250 mL) yellow onion, minced
• 2 Tbsp (30 mL) garlic, minced
• 2 lb (1 kg) whole red lentils, cooked
• 2 Tbsp (30 mL) tomato paste
• 1 cup (250 mL) ketchup
• ½ cup (125 mL) vegetable stock
• 1 Tbsp (15 mL) brown sugar
• 2 tsp (10 mL) Dijon mustard
• 1 tsp (5 mL) chili powder
• 2 tsp (10 mL) Worcestershire sauce
• ½ tsp (2 mL) black pepper, finely ground
• 10 burger buns, for serving