Cook sausage in a large skillet over medium-high heat for 10 minutes or until sausage crumbles and is no longer pink. Drain well on paper towels, and set aside.
Pat 1 can pizza dough into a 15 x 10-inch rectangle on a lightly floured surface; cut into 6 (5-inch) squares. Press squares into lightly greased muffin cups, skipping every other muffin cup. Repeat procedure with remaining can of pizza dough.
Spoon sausage evenly into crusts; sprinkle evenly with hash browns and Cheddar cheese.
Stir together egg substitute and milk and pepper; pour evenly into pizza cups, and sprinkle with grated Parmesan cheese.
Bake at 375℉ for 18 to 20 minutes or until golden. Serve with pizza sauce.