Thought this was ok, but may enjoy more with mushrooms or spinach instead of all the bell pepper. Used swiss instead of gruyere to cut on costs. It was a little bland for me. Not sure if I'll make this again, although it was eaten up pretty well by guests at a potluck.
I have made this great, colorfull version of mac and cheese two times for dinner parties and it has been a big hit even with the full fat lovers...No one ever knew it was "light"!