STUFFED SPINACH SHELLS RECIPES

Steps:

• Arrange a rack in the top third of the oven and heat the oven to 375°F.
• If using frozen spinach, thaw 10 ounces according to package directions. Transfer to a clean kitchen towel, roll it up in the towel, and squeeze out all the excess moisture.
• Mince 3 garlic cloves. Grate 12 ounces low-moisture mozzarella cheese on the large holes of a box grater (about 3 cups). Finely grate 1 ounce Parmesan cheese (about 1/2 packed cup).
• Bring a large pot of salted water to a boil. Meanwhile, heat 2 tablespoons of the olive oil in a large high-sided skillet over medium heat until shimmering. Add the garlic and 1/4 teaspoon red pepper flakes and sauté until fragrant, about 1 minute. If using fresh baby spinach, add 10 ounces a few handfuls at a time and stir until just wilted, about 5 minutes. If using frozen spinach, add to the pan and cook, stirring occasionally, until the liquid has evaporated, about 2 minutes. Season with 1/4 teaspoon of the kosher salt. Remove from the heat and let cool slightly while you parboil the shells.
• Add 6 ounces jumbo pasta shells to the pot of boiling water and cook until barely al dente, about 9 minutes or according to package directions. Drain, drizzle with the remaining 1 tablespoon olive oil while still in the strainer, and toss to coat.
• Add 15 to 16 ounces ricotta cheese, 1 cup of the mozzarella, the remaining 1/2 teaspoon kosher salt, and 1/4 teaspoon black pepper to the pan of spinach and stir to combine.
• Spread 1 cup of marinara sauce from a 24-ounce jar into a 9x13-inch baking dish. Stuff each shell with a generous spoonful (about a heaping tablespoon) of the ricotta mixture and place them filling-side up in the dish. Spoon the remaining 2 cups marinara sauce over the shells and sprinkle with the remaining 2 cups mozzarella and Parmesan.
• Bake uncovered until the cheese is melted and the sauce is bubbling, about 30 minutes. Let cool on a wire rack for 5 minutes before serving.

Steps:

• Bring a large pot of water to a boil and salt generously. Fill a bowl with ice water. Blanch the spinach for no more than 20 seconds, just until wilted, and transfer to the ice water, then drain. Squeeze out excess water. Bring the water in the pot back to a boil and add the pasta shells. Cook al dente, about 10 minutes, and drain and toss with the olive oil. Set aside.
• Turn on a food processor fitted with the steel blade and drop in the garlic. When the garlic is chopped and adhering to the sides of the bowl, stop the machine and scrape down the sides of the bowl. Add the spinach and pulse to chop finely. Add the ricotta and the egg and process until well blended. Add 1/3 cup of the Parmesan, the chives, and salt and pepper to taste. Pulse until well blended.
• Preheat the oven to 350 degrees. Oil a large baking dish or two 2-quart dishes. The shells should fit into the dish in one layer. Fill each shell with a scant tablespoon of the filling. Arrange in a single layer in the baking dish. Top with the tomato sauce and cover the dish with foil.
• Bake 30 minutes in the preheated oven. Remove from the heat, sprinkle on the remaining Parmesan, and serve.