Yamburgers Recipe: Sweet Potato Lentil Burger

Ingredients

• 2 medium sweet potatoes , baked
• 8 oz (227 g) uncooked lentils , rinsed
• 1 medium carrot , peeled and finely chopped (0.5 cup)
• 1 small onion , finely chopped (0.75 cup)
• 0.33 cup celery , finely chopped
• 2 tbsp maple syrup
• 2 slices whole- grain bread , broken into small pieces
• 1 tbsp olive oil