I assume since you are cut that you'd want to preserve that. Well, that's probably your problem. By eating more, you should be left feeling uncomfortably full throughout the day. Eating things like brown rice, egg whites, ect. should not be on that list. By eating a lot of the right things, you'll gain some fat to accompany the increased muscle. You seem to me like your metabolism is pretty fast, so the fat loss shouldn't be very hard to do in the end.
What's your daily intake look like? Include pre/post workout meals and nutrition.