Cheese Stuffed Pasta Shells

1 lb large cooked and cooled pasta shells
2 cups ricotta cheese
2 cups mozzarella cheese
1/2 cup fresh grated Parmesan cheese
1/2 cup chopped fresh spinach
1 jar favorite pasta sauce
Salt and pepper to taste
Large Ziploc bag with a tip snipped off

Preheat oven to 350°.
Spray a large baking oven safe deep dish pan with Pam.
Spread your favorite pasta sauce on the bottom of the pan.
Mix all the cheeses, spinach, and salt and pepper in a medium bowl.
Spoon the cheese mixture into the Ziploc bag.
Carefully fill each shell and place them in the pan with the sauce.
*The open side of the shells facing up.
Place a layer of aluminum foil over the top and cook for 20 min.
Remove foil and cook an additional 5 to 10 min uncovered.
Remove from oven let rest and serve spooning some of the sauce over the tops of the pasta.

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