We like this sausage strata:
http://www.eatingwell.com/recipes/sunday_sausage_strata.html
Don't substitute low-fat cheese. Use the full-fat stuff. They already cut down the quantity of cheese to allow for that.
I've also done this with mushrooms instead of the bell pepper. Brown them first in a skillet with olive oil or butter before adding them in. When you're browning them, don't crowd them too much or toss them too much--they'll steam in their own moisture that way. Let them really sit and get brown, tossing just a couple of times.