In a big mixing bowl add the Ricotta Cheese, 3/4 of the Romano, about 3/4 of the Mozzarella, Eggs, Chili, Salt and Pepper. Mix well.
In two 33 x 25 cm baking dishes, pour about 2 ladlefuls of Marinara in each dish, then spread evenly across the bottom.
Fill each Shell with Cheese mixture. Lay the shell in the baking dish on top of the Marinara.
Once all the Shells are stuffed with the Cheese filling, pour some Marinara over all of the Shells. Top the Shells with remaining Cheese.
Place into the oven and cook for 20 minutes.
Remove from the oven, let stand for 5 minutes, then serve.