Cut the chicken breasts into 1/2 thin strips. Put into a small bowl, add the spices and juice of 1/2 a lime and set aside.
Heat a large pan/skillet to medium/high heat. Coat with about 1 tablespoon oil, add chicken mixture to oil. Make sure the pan is hot. The more sizzle you hear the more flavor the chicken will have.
Next, Allow the chicken to cook on medium/high heat for 10 minutes (the hotter the better), while tossing every few minutes. Add the sliced peppers,onions and jalapenos, continue cooking for just one minute. Remove from heat and serve with warm tortillas, lime, sour cream,or guacamole.
Serve the fajitas in a pan and allow your guest to make their own fajitas or prepare the fajita yourself and serve.