Soak wooden skewers in water for 20 minutes to prevent burning during the grilling process.
Combine the brown rice with water in a small pot and simmer until all liquid is absorbed and grains are tender and fluffy.
In a small bowl, whisk together the coconut aminos, honey, sesame oil, grated fresh ginger, and minced garlic to create the teriyaki glaze.
Slice the chicken breast, pineapple, red bell pepper, and red onion into uniform 1-inch cubes.
Thread the chicken, pineapple, and vegetables onto the skewers in an alternating pattern to ensure even cooking.
Season the assembled skewers with sea salt and black pepper.
Pre-heat a grill or grill pan to medium-high heat and lightly grease with a high-heat oil.
Grill the skewers for 10-12 minutes, turning occasionally and brushing liberally with the teriyaki glaze during the final 5 minutes of cooking until the chicken is charred and cooked through.
Serve the hot skewers immediately over the bed of cooked brown rice.