Season the chicken breast (unless it is pre-cooked) with the fajita or taco seasoning. Set aside. See notes for pre-cooked chicken.
In a small non-stick skillet, over medium heat, heat the Mazola® Corn Oil and cook the chicken until done. Add the green peppers and onion and stir until slightly soft. Transfer the cooked chicken to a plate.
Using two bowls, separate three egg yolks from the whites and whisk the whites lightly.
*Cook the whites in the same skillet that the chicken was cooked, swirling around to coat the pan. Cook on medium-low heat until eggs are set. Using a spatula, carefully flip the egg whites and cook for another minute or so. Add the fajita mixture and cheese, fold and transfer to a plate. Serve with salsa and more cheese. And make the next omelette!