Strain and reserve the pineapple juice from the can into a separate container. Set aside the pineapple slices for later.
In a large bowl, whisk together the BBQ sauce, ½ cup of the reserved pineapple juice, soy sauce (or coconut aminos), sesame oil, garlic, and ginger.
Reserve ½ cup of the marinade in a separate container for later.
Add the chicken to the bowl with the marinade, or add both to a large ziplock bag.
Cover and close (or seal, if using a bag), and refrigerate for at least two hours, up to overnight.
Once the chicken has marinated, remove from the refrigerator.
Grill on high for about 5-7 minutes each side. Baste with the reserve marinade during the last 5 minutes.
Brush both sides of the pineapple slices with oil and add to the grill for the last few minutes of the chicken's cook time. Grill the pineapple slices for about 2 minutes on each side.
Transfer chicken and pineapples to a plate. Garnish with sliced green onions.
Notes
Makes approximately 5-6 servings.Storage: store leftovers in an airtight container in the refrigerator for up to 3 days.