Step 1 Steam sweet potato until just tender. Set aside and keep warm.
Step 2 Spray a frying pan with oil and place over medium heat. Add onion and cook for 5 minutes, or until soft. Add 1/2 cup water, tomatoes, sugar and vinegar. Bring to the boil, then reduce heat and simmer, covered, for 10 minutes. Uncover and simmer, stirring occasionally, for a further 10 minutes, until sauce has thickened.
Step 3 Heat barbecue or place a chargrill pan over high heat. Lightly spray sweet potato and chicken with oil. Cook for 2–3 minutes, or until chicken is cooked and potato is lightly grilled. Sprinkle with oregano and season with black pepper.
Step 4 Alternately stack 3 slices chicken with 3 slices sweet potato on serving plates. Spoon cherry tomato sauce over stacks before serving.
This is one of 10 delicious and healthy meals created from just 10 basic ingredients (plus a few pantry staples). Click here to see more!