Chicken Fajitas #3

1 teaspoon oil

1 pound boneless skinless chicken breast, cut in thin strips

1 large onion, cut in slivers from pole to pole

1 green bell pepper, cut in slivers pole to pole

1 red bell pepper, cut in slivers pole to pole

4 cloves garlic, finely chopped

2 tablespoons chili powder

3 teaspoons ground cumin

1 teaspoon black pepper

ground red pepper (to taste)

salt (to taste)