Chicken and lettuce wraps

Ingredients

• 1 clove garlic, finely diced
• 1 tablespoon ginger, grated
• 4 tablespoons hoisin sauce
• 2 tablespoons reduced-salt soy sauce
• 2 tablespoons rice wine vinegar
• 2 teaspoons lime juice
• 4 chicken breasts, skinless, diced (about 120g each)
• 1 x 225g can water chestnuts, drained, rinsed and finely chopped
• 2 red peppers, finely chopped
• 4 spring onions, finely chopped
• Spray oil
• 1 little gem lettuce (90g), washed, leaves separated