- STEP 1
Preheat oven to 200°C. Line a large baking tray with baking paper. Place sweet potato on prepared tray and spray with olive oil. Bake for 30 minutes, or until golden and tender.
- STEP 2
Spray a grill pan with oil and set over high heat. Cook pineapple slices for 2 minutes on each side, or until lightly charred and heated through. Transfer to a plate.
- STEP 3
Meanwhile, cut each chicken breast horizontally into 2 thin fillets. Place chicken on a plate. Spray fillets with olive oil, then sprinkle with Cajun seasoning.
- STEP 4
Cook chicken on grill plate for 2–3 minutes each side, or until browned and cooked through.
- STEP 5
Meanwhile, preheat grill. Toast rolls until light golden. Place roll bases on 4 serving plates. Top with the lettuce, cucumber, mint, chicken and pineapple. Add the tops of rolls to burgers. Serve with the sweet potato wedges.