Preheat oven to 350 degrees F
Heat olive oil in cast iron pan on medium heat and add diced onion
As onion cooks, peel and shred sweet potato before adding to oil and onions
Season with salt and pepper
Cook, stirring occasionally, for about 10 minutes
Meanwhile, in a mixing bowl, crack 8 eggs and whisk with 3/4 cup milk, 1/2 t paprika, 3/4 t dried mustard and 1 t seasoning salt
Decrease heat to medium low and add egg mixture to pan
Tear up the prosciutto and scatter on top of eggs (you may or may not use three - up to you!)
Add tablespoon sized dollops of ricotta to empty spots among the egg and prosciutto
Season with pepper, if you like
After approximately 5-7 minutes, the egg on the edge of the pan should appear to be cooked. Remove pan from stove top and put in the oven to cook for about 15-18 minutes, or until the egg is no longer liquid on top
Serve warm or cold