Preheat oven to 350 degrees. Spray a 10 inch tart pan with cooking spray.

Brown sausage in a large pan over medium heat. Drain off the fat and put the sausage on a plate lined with paper towels.

Add sausage to the tart pan. Sprinkle cheddar and mozzarella cheeses on top.

Combine eggs, milk, oregano and pepper in a bowl. Pour over the pizza.

Bake for 30 minutes or until eggs are set - cut into the middle with a knife and there shouldn't be any liquid remaining.

Let cool for 5 minutes then enjoy!