Preheat oven to 350°F

Bring large pot of salted water to boil over high heat

Add pasta shells for 10 minutes or until al dente

Mix ricotta, eggs, parmesan, mozzarella, and parsley together

Drain shells under cold water

Spoon about 3 tablespoons of ricotta mixture into each shell

Pour 1 cup of pasta sauce into casserole dish

Put shells into casserole dish

Pour rest of pasta sauce over shells

Bake uncovered for 30 minutes or until bubbly