1.Use a steak hammer to pound out the chicken breasts until about ¼-inch thick.
2.Heat olive oil in a heavy skillet over medium-high heat. 3.Saute red bell pepper , green bell pepper, and onions for 5 minutes, until par-cooked.
4.Preheat oven to 375 degrees.Place a pinch of cheese in the center of each chicken breast. Place a large spoonful of onion and bell pepper mixture on top. Finish off with another pinch of cheese.
5.Carefully roll up the chicken so stuffing is completely inside. Secure the chicken with toothpicks. Place in the prepared pan. Season generously with cajun seasoning.
6.Place a tablespoon of butter on top of each chicken breast.
Bake in the preheated oven until chicken is cooked through, about 30 to 40 minutes.