Preheat the oven to 400 degrees F and spray a 9x13 baking dish with cooking spray. In a medium bowl, mix together the cream cheese, salsa, broth and fajita seasoning until well combined. Add chicken and toss to coat.
In a medium skillet, heat the oil and add the onion and bell pepper strips. Saute over medium high heat until the vegetables are softened and lightly caramelized. Remove from heat, toss in the lime juice and set aside
Sprinkle the cheese on top. Place the dish uncovered in the oven to bake for 20-25 minutes, or until the chicken is fully cooked through and the internal temperature of the chicken has reached 165 degrees F.