I haven't done it with the breakfast sandwiches but I do "fast food burger-- throw away the bun" on occasion. I wouldn't worry about it carb-wise. On another note, it's probably not the most quality meat and like mentioned, the cheese is probably processed. The sauce may have had some carbs but it can't be THAT many (I'm not familiar off hand with the sauce they put on it). But as long as it's an occasional thing and not your everyday breakfast, I wouldn't even think twice about it.