Preheat your oven to 230° C (450° F), get out a 9 inch pie dish.
Prepare the crust and place in the pie dish, flute as desired, and bake for 7 minutes or until the crust is just lightly browned. Reduce oven temp to 160° C (325° F).
In a non stick pan, brown the sausage and onion, breaking up the sausage with your spatula, until cooked through and no pink is visible. Drain excess fat. Stir in the oregano and black pepper.
In a mixing bowl, add the eggs and milk and beat together.
Stir in the sausage and cheese.
Pour mixture into the prepared crust.
Bake for 20 minutes or until a knife inserted in the center comes out clean.
Spread pizza sauce on top and bake for another 5 minutes.
Optional, cut each slice of cheese in half to make triangles, arrange on top of the pizza sauce, and bake for another 5 minutes or until the cheese melts.
Serve and enjoy.