I do not have the exact answer for you but I did check out calorie king and found that the cheese quesadilla as a meal. I appeared the calorie count for a serving....which I would assume is the whole thing not just one piece......is abut 740 calories and 14 grams of fat. If you ate a simple piece, I would think it was a very good choice. I am guessing you didn't use sour cream but, even if you did, I don't think the small piece would even be a problem at all.