Preheat the oven to 350 degrees. Boil water(add a pinch of salt). Cook the shell until they are al dente(not fully cooked but still edible). Drain pasta and mix with olive oil. Place the sauce in an 8x8 pan. In a medium mixing bowl mix the spinach, ricotta, egg, shallot, pepper, onion powder, salt, and 1/4 cup of parmesan cheese. Spoon filling into each shell and place in the pan. Sprinkle the rest of the cheese on top. Cover and bake for 20 minutes. Uncover and bake for 5 minutes until the cheese browns. Top and serve with additional sauce that has been heated up.
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