Boil pasta shells in salted water as directed on the box (about 10-12 min). Drain and place on a parchment lined baking sheet.
In a medium size mixing bowl, stir together the sausage, ricotta cheese, egg, spinach, parmesan, and half of the mozzarella cheese. Combine well.
Preheat oven to 350 degrees F. Spray a baking dish with no stick cooking spray.
Divide the filling evenly between the shells. Arrange the shells in the baking dish. Spoon the pasta sauce over the shells. Top with remaining mozzarella cheese.
Bake about 25 minutes, or until sauce is bubbly and cheese is melted.
Serve warm with garlic bread and a salad.
**Recipe may be prepared a day ahead of time and refrigerated. Bake as directed.
Notes
NUTRITIONAL DISCLAIMER. Calorie count provided is an estimate and will vary based on cooking methods and brands of ingredients used.