Ingredients

  • 1 (15 ounce) container whole milk ricotta cheese
  • 1 (10 ounce) package frozen chopped spinach, thawed, squeezed dry
  • 1 cup parmesan cheese, grated
  • 2 tablespoons parmesan cheese, grated
  • 3 ounces prosciutto, chopped, thinly sliced
  • 1 large egg, beaten to blend
  • 3/4 teaspoon salt, plus more for salting water
  • 1/2 teaspoon fresh ground black pepper
  • 1 -2 tablespoon olive oil
  • 12 lasagna noodles, uncooked
  • 2 cups marinara sauce, plus more as a side
  • 1 cup mozzarella cheese, shredded (about 4 ounces)

Method

  • Preheat the oven to 450°F.
  • Whisk the ricotta, spinach, 1 cup Parmesan, prosciutto, egg, salt, and pepper in a medium bowl to blend.
  • Add a tablespoon or 2 of oil to a large pot of boiling salted water. Boil the noodles until just tender but still firm to bite. Drain. Arrange the noodles in a single layer on a baking sheet to prevent them from sticking.
  • Butter a 13x9x2-inch glass baking dish. Pour sauce over the bottom of the prepared dish. Lay out 4 lasagna noodles on a work surface, then spread about 3 tablespoons of ricotta mixture evenly over each noodle. Starting at 1 end, roll each noodle like a jelly roll.
  • Lay the lasagna rolls seam side down, without touching, atop the sauce in the dish.
  • Repeat with the remaining noodles and ricotta mixture. Spoon 1 cup of sauce over the lasagna rolls.
  • Sprinkle the mozzarella and remaining 2 tablespoons of Parmesan over the lasagna rolls.
  • Cover tightly with foil. Bake until heated through and the sauce bubbles, about 20 minutes.
  • Uncover and bake until the cheese on top becomes golden, about 15 minutes longer. Let stand for 10 minutes.