Dice chicken. Heat 2 tablespoons of oil in a large skillet over medium (use remaining oil as needed). Add chicken pieces, sliced garlic, garlic powder, salt, sesame seeds, and soy sauce. Stir to coat and cook for 5 minutes.
Meanwhile, cut peppers into large cubes and add to chicken. Cook for 3-4 minutes longer or until chicken is no longer pink.
Serve on a bed of rice. Clementines can be added to the pepper mixture or served on the side.