Preheat oven to 370 degrees.
In a medium bowl mix together chicken breasts, red bell peppers, onions, seasoning packet, and olive oil.
Spread ingredients onto a large baking sheet.
Bake for 40 - 45 minutes or until chicken is no longer pink on the inside and juices run clear.
Season with 1/2 teaspoon of salt. Use more if needed.
Squeeze lime juice over the top of the chicken and vegetables.
Garnish and enjoy with your favorite fajita condiments.