Beef-Stuffed Shells with Creamy Ricotta Filling

Ingredients:

12 jumbo pasta shells
1 lb ground beef
1 cup ricotta cheese
1 cup marinara sauce
1 cup mozzarella cheese, shredded
1/2 cup Parmesan cheese, grated
1 egg
1 tsp Italian seasoning
Salt and pepper, to taste

Directions:

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