Ingredients

  • 2 (10 ounce) packages frozen chopped spinach, thawed
  • 2 green onions, finely chopped (white and green parts)
  • 1 cup grated parmesan cheese, divided
  • 1 cup shredded mozzarella cheese
  • 1 cup ricotta cheese
  • 1 large egg, lightly beaten
  • 14 teaspoon pepper
  • 18 teaspoon nutmeg
  • 14 lb jumbo pasta shells (about 18)
  • 3 cups marinara sauce (or your favorite spaghetti sauce)

Method

  • Preheat oven to 350.
  • Put the thawed spinach in a sieve and use a large spoon to press out the moisture.
  • In a big bowl, combine the green onions, 1/2 cup Parmesan cheese, mozzarella, ricotta, egg, pepper, nutmeg, and spinach.
  • Cook pasta according to package directions until al dente; drain.
  • Spread 1 cup sauce over the bottom of a shallow 2-quart casserole.
  • Stuff the shells with the spinach mixture and arrange them on top of the sauce.
  • Ladle the remaining 2 cups sauce over the shells and sprinkle with the remaining 1/2 cup Parmesan.
  • Spray a sheet of foil with cooking spray and cover the casserole (at this point, the dish can be covered and refrigerated for up to 1 day, add 10 minutes to baking time).
  • Bake for 20 minutes, remove the foil, and continue baking until the casserole is heated through and the sauce is bubbly, about 10-20 minutes longer.