Fill a large pot with water and bring to a boil on the stove. Once water is boiling, pre-cook your pasta shells until al dente. Once cooked, rinse your shells under cold water.
While the pasta shells are cooking, make the cheese filling.
In a medium sized bowl, combine the cottage cheese, 2 cups of the parmesan cheese, cooked shredded chicken, parsley, salt, pepper and the eggs. Stir until thoroughly mixed.
Preheat your oven to 350° and spray an 11x13 pan with a nonstick spray.
In your prepared pan, pour 1 cup of your alfredo sauce to cover the bottom.
Next, spoon the mixed cheese/chicken filling into each cooked shell, one at a time, arranging the shells in the pan as you go.
Pour your remaining Alfredo sauce on top of the stuffed shells in the pan.
Next, top your shells with the remaining parmesan cheese.
Place your pan in the oven, uncovered, and bake at 350° for 30 minutes. The cheese will be melted and the sauce will be slightly bubbly.
Enjoy!