Preheat oven to 425°
While oven is preheating, dice the potatoes, peppers and onions. Set peppers and onions aside.
Place diced potatoes on rimmed baking sheet lined with parchment paper. Drizzle with 1 tablespoon of avocado oil and lightly season with salt and pepper.
Bake potatoes at 425° for approximately 25-30 minutes. Once potatoes are done, reduce oven temperature to 400°.
While potatoes are baking you will prepare the rest of the casserole.
Cook 8 slices of bacon in a skillet on the stove and once cooked place on a plate lined with paper towels to soak up the grease. Once cooled, dice the bacon and set aside.
Using the same skillet, cook the breakfast sausage. Once cooked, place sausage in a paper towel lined bowl to soak up additional grease.
If needed, add additonal 1 tablspoon of avocado oil to skillet and sauté the onions and peppers until onions are trasluscent and peppers are tender.
Spray a 9x13 casserole dish with cooking spray and layer cooked potatoes, bacon, sausage and peppers.
Whisk 12 eggs and coconut milk and pour into the casserole dish.
Bake at 400° for 20-25 minutes or until eggs are fully cooked in the center.