Preheat oven to 350ºF.
Over a medium flame, heat 2 tablespoon of olive oil in a cast iron skillet.
Chop the onion, slice the potatoes into thin slices, dice the red peppers. Add them with the can of mushrooms to the skillet. Saute until the potatoes start to soften.
Add the sliced sausages to the pan for 5 minutes or until brown.
Beat the eggs along with the garlic powder, salt, black pepper, oregano, and almond milk.
Put the sauteed veggies and sausage into a 9x13 baking dish and pour in the egg batter.
Bake for 30 minutes.