Brown sausage. Add in steamed cauliflower rice and saute till moisture is absorbed.
In a separate pan, saute peppers.
Grease a 9x13 inch baking dish.
Cover bottom of dish in hashbrowns. Layer sausage/cauliflower mixture on top.
Add bell peppers to half (or whole) casserole.
Cover in cheese.
Whisk together milk, eggs, salt & pepper and pour over mixture.
Bake at 350 degrees for 1 hour.
Turn oven to broil and continue cooking for 5 more minutes.
Serve as is or use mixture to make breakfast burritos.