Step 1

Place the chicken in a plastic re-sealable bag.

Step 2

Whisk the soy sauce with the lime juice, sesame oil, ginger, garlic and hot pepper flakes.

Step 3

Pour half the mixture over the chicken.

Step 4

Let stand for 30 minutes.

Step 5

Preheat the grill to medium-high; lightly coat the grate with cooking oil.

Step 6

Remove the chicken from the marinade; discard the used marinade.

Step 7

Cook the chicken and the red pepper, turning and basting with the reserved soy mixture, for 15 to 20 minutes or until cooked through.

Step 8

Cool slightly.

Step 9

Arrange the chicken and red pepper on a roll with lettuce, cucumber and avocado.

Step 10

Cut in half and serve.