Grill the chicken breast until done (no pink), add salt, pepper, butter or whatever while grilling. Combine 1/8 stick of butter, chopped bell pepper and chopped onions in a skillet on low heat until slightly brown. Cut the grilled chicken into small cubes and mix into the peppers and onions. After stirring together for a minute, pour the mixture onto a plate. Next, warm each tortilla on the frying pan, then divide the cheese and the chicken mixture evenly between the two tortillas. Fold each in half and heat in the frying pan until the cheese melts and the tortillas are slightly crispy. Adding a little butter to the pan at this time also adds a nice flavor.