Dice ham, onion, celery and mushrooms into small pieces.
Spray a large pie pan with avocado oil.
In a blender put the egg, egg whites, 1/2 or 2/3 of the ham and onion, milk, bisquick, salt & 1/2 of the cheese. Blend for 10-20 seconds.
Put celery, mushrooms and remaining ham and onion at the bottom of the pie pan.
Pour blended mixture into pie pan.
Top with remaining cheese
Bake for 30 minutes at 375 degrees or until brown.
Let sit 5 minutes before serving.