Step 1

Preheat oven to 350 degrees F (175 degrees C).

Step 2

Bring a large pot of lightly salted water to a boil. Add pasta and cook for 8 to 10 minutes or until al dente; drain.

Step 3

In a large bowl, mix eggs, ricotta, half the mozzarella, half the Parmesan, parsley, salt and pepper until well combined. Stuff cooked shells with ricotta mixture and place in a 9x13 inch baking dish.

Step 4

In a medium bowl, stir together pasta sauce, mushrooms and reserved mozzarella and Parmesan. Pour over stuffed shells.

Step 5

Bake in preheated oven 45 to 60 minutes, until edges are bubbly and shells are slightly set.