Easy Chicken Fajitas

Fast and easy for making after a long day at work.
Ingredients:
2 lb chicken breasts, cut into small pieces
Fajita seasoning (I use Kroger fajita seasoning in a bottle)
2 red sweet peppers, seeded & sliced
2 yellow sweet peppers, seeded & sliced
2 green peppers, seeded & sliced
1 large sweet onion, peeled and sliced
Favorite brand of salsa
Lettuce, washed and torn into small pieces
Shredded cheddar cheese
Sour Cream
10" round tortilla shells
Butter
Olive oil

In a large skillet, melt enough butter to keep chicken from sticking to pan.  Add chicken and sprinkle with fajita seasoning, to taste, and cook on medium heat until golden brown and chicken is no longer pink.  In another large skillet, heat olive oil and add peppers and onion, cook on low-medium heat until the veggies are tender and the onions are slightly carmelized.  In a 10" skillet, melt a small amount of butter and add a tortilla shell.  Heat until slightly brown on each side, only a minute or two per shell.  Once everything is cooked, add lettuce, cheese, sour cream, salsa, and whatever other toppings you like!  If you prefer, you can crumble Doritos and use in place of tortilla shells.  Very easy and quick.