Prepare all of the ingredients. Preheat oven to 375ddeg.
Combine taco seasoning ingredients. Divide in half.
In a bowl, combine onion, bell peppers, oil and half of taco seasoning. Toss to well coat.
In a 13x9 dish, add pepper mixture. Place chicken pieces on top. Sprinkle with remaining taco seasoning. Place a slice of cream cheese on each. Cover all with shredded cheese.