Turn your Ninja Foodi on and press saute. Add your olive oil, diced onions, and ground sausage (spicy is best) /or bacon.
Cook until halfway done, then add sliced mushrooms. Cook until sausage is no longer pink. Press stop on machine. (if there is a lot of grease, drain)
In a bowl scramble your eggs and pour into your Ninja Foodi with your meat.
Sprinkle in your garlic salt, 1/2 c of shredded cheese, and add 1/4 c cream of mushroom soup or alfredo sauce can be used.
Stir together so all of this is combined well.
Close your air fryer lid and press air crisp button, 390 degrees for 6 minutes.
Lift lid and stir so uncooked egg on bottom is circulated and able to cook thoroughly.
Close lid again and set to air crisp, 390 degrees for another 4-5 minutes. Timing now will depend on how well done you like your egg/omelette. Look after 4 minutes and cook until it is the desired consistency.
Serve with added cheese on top and a sprinkle of chives.