Boil water and cook shells according to directions on package. Drain the shells, spray them with cooking spray (to prevent sticking) and set aside.
In a medium bowl, mix ricotta, egg, Italian seasoning and 1 cup of mozzarella until combined well.
Fill each shell with a tablespoon of the ricotta mixture.
Spray a 9×13 casserole dish. Fill the casserole dish with the stuffed shells. You can fit four rows of five shells.
Pour 1 cup of marinara sauce over the stuffed shells.
Sprinkle remaining 1 cup of shredded mozzarella over the sauce.
Cover with foil and bake for 30 minutes in a 350 degree oven.
Remove foil and bake for another 5 minutes.
Video
Notes
You can easily prep these stuffed shells the night before. Just assemble, cover, and pop them in the fridge. The next day, all you have to do is bake and serve!
I like using whole milk mozzarella for this recipe because it melts beautifully and adds a rich, creamy flavor.
Nutritional information is an estimate and may vary based on ingredients and preparation methods. Calculations were made using online tools and should be used as a general guide only.