Heat oil in a large non-stick wok or frying pan over a high heat. Add chicken and garlic. Stir-fry for 4-5 minutes, breaking up mince, until chicken is cooked.
Combine chilli jam, soy sauce, lime juice and 2 tablespoons water in a jug. Add to wok with rice. Stir-fry for a further 2-3 minutes or until well combined and hot. Remove from heat.
Add peanuts, carrot, tomatoes, cucumber and coriander leaves. Toss well to combine. Spoon into lettuce leaves to serve.