01 -
Pound the chicken breasts to an even 1-inch thickness if needed. Slice each breast in half to create 4 pieces. Season evenly with salt, pepper, and garlic powder.
02 -
Combine pineapple juice from the can, soy sauce, brown sugar, and Dijon mustard in a bowl. Place the chicken in the marinade and refrigerate overnight.
03 -
Set your grill to medium-high heat and oil the grates thoroughly to prevent sticking.
04 -
Grill the marinated chicken for 12 to 15 minutes, flipping halfway through. Ensure the internal temperature reaches 165°F. Place a slice of provolone cheese on each piece during the last 3 minutes of grilling.
05 -
Place pineapple rings on the grill halfway through the chicken cooking time. Flip rings once during cooking for even grill marks.
06 -
Spread mayonnaise on the buns. Place a piece of grilled chicken and a grilled pineapple ring on each bun. Serve immediately.