Method:

1. Prick the skins of sweet potatoes several times with a fork. Lightly spray sweet potato with oil and place on a plate lined with paper towel. Microwave on HIGH (100% power) for 8-10 minutes or until just tender. Set aside.
2. Meanwhile, heat oil in a large non-stick frying pan over medium-high heat. Add onion and cook for 2-3 minutes until softened. Add mince and cook for 4-5 minutes until browned. Add beans and sauce and simmer for 3-4 minutes. Season to taste.
3. To serve, cut sweet potatoes in half lengthways. Top with mince mixture. Sprinkle with cheese and coriander. Serve with coleslaw or salad and lime wedges.