Upside-Down Sausage and Mushroom Pizza

Preheat oven to 400 degrees F.

Heat oil in large skillet over medium heat. Add sausage and cook for 3 minutes, or until browned and cooked through, breaking up the meat as it cooks with a wooden spoon. Add onion and mushrooms and cook 2 minutes, until soft. Add pasta sauce, pizza sauce and olives and bring to a simmer, about 2 minutes. Remove from heat and transfer sauce to the bottom of a 13 by 9-inch baking dish . Top with mozzarella cheese .

In a medium bowl, whisk together eggs, milk and oil until blended. Whisk in flour and salt until well blended. Pour mixture over sauce in pan. Sprinkle with Parmesan . Bake 25 minutes, or until golden brown. Let stand for 5 minutes before slicing and serving.