Flavorful Chicken Soft Tacos

In a skillet, melt the butter or margarine over medium heat.
Quickly cook the chicken breast strips and chopped onion in the melted fat until the chicken is cooked through and the onion is tender.
Add the tomato sauce, garlic salt, salt, and ground cumin to the skillet.
Reduce the heat and simmer the mixture, covered, for 15-20 minutes.
To serve, place a portion of the hot meat mixture on each heated tortilla.
Top with desired fillings such as shredded cheese, chopped tomatoes, shredded lettuce, sliced pitted ripe olives, and taco sauce.
Roll up the tortillas burrito-style and serve.