Cover pan with cooking spray. Add cubed chicken and cook on med-high until liquid runs clear. Drain liquid, return chicken to pan. Add teriyaki and cook 3-5 minutes for the chicken to soak up the teriyaki goodness.
To make sandwiches, slice croissant in half. Spread one tablespoon of mayo on bottom half, cover may with 1/4 cup cabbage. Add 1/6 of the chicken portion.