Preheat oven to 400 degrees. Grease a 9x13 inch
baking dish. Combine sausage, mushroom and onion in
large skillet. Saute over medium high heat until
sausage is completely cooked. Season
to taste with salt and pepper. Drain well.
Combine eggs and sour cream in blender and whip 1
minute. Turn into baking dish and bake until eggs
are softly set, about 4 to 7 minutes. Spoon hot
sauce evenly over top. Add sausage mixture and top
with combined grated cheeses.
To serve immediately, broil until cheeses are
melted. To serve next day, refrigerate until serving
time, bake at 325 degrees F until cheeses
are melted, about 30 minutes.