Savannah Shepherd's Pie

Ingredients

• 2 tablespoons oil
• 650 g ground beef or 650 g ground turkey
• 1 onion, finely chopped
• 1 red pepper, finely chopped
• 1 green pepper, finely chopped
• 1 hot chili, finely chopped (optional)
• 4 cloves garlic, crushed
• 2 tablespoons parsley, finely chopped
• 1 (400 g) can black beans, drained
• 1 (400 g) can chopped tomatoes
• 2 tablespoons smooth peanut butter
• 2 teaspoons cocoa powder
• 1 teaspoon chili powder
• 1 kg sweet potato, cooked and mashed
• 2 tablespoons grated cheese (optional)
• salt & freshly ground black pepper