Southwestern Brunch Casserole

I love an easy egg-sausage casserole.  This is easy to put together and I love all the veggies that go in it. Of course, serve it with a nice serving of medium or spicy chunky salsa and you're in for such a treat. This also works  great for dinners, not only breakfast or brunch.  Enjoy!
-1 lb bulk sage sausage
-1 onion, finely chopped
-1 bell pepper, chopped
-salt and pepper
-2 lbs potatoes (Yukon work great, but any will do)
-8 oz shredded Cheddar cheese
-8 large eggs
-3/4 cup milk
-medium or spicy chunky salsa
Preheat oven to 350 F.  Coat a 9x13 baking dish with cooking spray. Set aside.
In a large skillet, start browning the sausage, along with the onion and bell pepper.  Season with some salt and pepper and cook until sausage is nice and brown.
While that's cooking, peel the potatoes and slice very them very thin**a mandolin would work great for this, but manually can work as well.  Once sliced, placed potatoes on bottom of prepared dish (it's ok to have more than 1 row).  Season with salt and pepper.
Sprinkle half of the cheese on top of the potato layers.  Top that with the sausage mixture.  Top with remaining cheese.
In a large bowl, beat the eggs.  Stir in the milk and season with some salt and pepper.  Pour oven casserole.
Cover tightly with foil and bake in preheated oven for 1 hour.  Uncover and cook an additional 15-20 minutes, or until knife comes out clean.
Remove from oven and let it rest for 5 minutes.  Slice, top with salsa, and enjoy!