Preheat the oven to 350 degrees.
Place shells in salted boiling water in a large pot for 1/2 the time listed on the box. Drain and rinse in cool water.
In a large bowl, mix the Ricotta, salt, pepper, basil, egg, Romano and 1/2 of the Parmesan.
In a 9 X 13 pan place 1/2 of one jar of sauce in bottom of pan.
Fill the shells with cheese mixture and place face down lined up in pan.
Add remaining sauce from first jar on top. Continue to add shells and use 2nd jar of sauce on top and sprinkle Mozzarella cheese and remaining Parmesan Cheese.
Bake in oven for 25 minutes.