In a medium bowl mix ricotta, egg yolk, 1/2 cup mozzarella, Parmesan cheese, parsley, and garlic.
Spread 1/3 cup pizza sauce on the bottom of a 9-inche round baking dish or pie dish.
Lay lasagna noodles on a large clean surface (wax paper works great) and spread each noodle with 1 tablespoon pizza sauce. Top each noodle with 3 tablespoons ricotta mixture then pepperoni.
Roll lasagna noodles and place seam side down in baking dish.
Pour remaining pizza sauce evenly on top of rolls. Sprinkle with remaining mozzarella cheese.