Dice the chicken breast into small, bite-sized pieces and season evenly with garlic powder, sea salt, and black pepper.
Heat the olive oil in a non-stick skillet over medium-high heat until shimmering.
Add the chicken to the skillet and sear until golden brown and cooked through, approximately 5 to 6 minutes.
Add the diced red bell pepper and yellow onion to the pan, sautéing for 3 minutes until they are tender-crisp.
Whisk the honey and coconut aminos together in a small bowl, then pour the mixture over the chicken and vegetables.
Stir the mixture constantly for 1 minute until the sauce thickens into a glossy, sticky glaze that coats all ingredients.
Warm the flour tortilla in a separate dry pan or the microwave for 15 seconds to make it pliable.
Layer the cooked brown rice in the center of the tortilla, top with the honey-glazed chicken mixture, and roll tightly into a burrito.