WOW! This was incredible--I would give it TEN stars if I could! The chicken has a wonderful SMOKY flavor that infiltrated the meat and had it tasting as though it was cooked in a smoker as opposed to a skillet. I used Sweet Baby Ray's Hickory & Brown Sugar barbecue sauce, and sauteed the garlic, onions, and peppers until they started to lightly brown, then added in the tomatoes and cooked the veggies for another 5 minutes or so. I did remove them from the skillet and kept them warm so the chicken would brown nicely (wiped the skillet clean and added the butter in increments), then returned the veggies to the pan after the chicken had browned and added the marinade to make the yummy barbecue-butter sauce. I used 2 slices of Muenster cheese for each chicken breast, then ladled on some sauce and topped with the scallions--covered and cooked for another 10 minutes or so to allow the cheese to melt and to ensure that the chicken was thoroughly cooked and the marinade heated through. This is a restaurant-quality dish that is fairly simple to prepare, and I can only imagine how fabulous this would taste on the grill--can't wait to try it when the weather finally breaks!! Next time I will double the sauce because it's just that yummy and could always use more for whatever will be served with it. (Not a huge fan of rice.) I think mashed potatoes or angel hair pasta would also pair well with this dish. Thank you so much for sharing this delicious new favorite!!!