Spinach Lasagna

Layers of tomatoes, spinach, cheese and pasta form a rich lasagna.

Prepare the lasagna a day ahead and bake just before serving.

55 min Prep: 15 min Cook: 40 min
Serves: 12 Save

Ingredients (20)

  • Tomato Sauce:
  • 3 tablespoon olive oil
  • 1 small yellow onion, finely chopped
  • 2 clove garlic, crushed
  • 1 -- (28-ounce) can diced tomatoes, undrained
  • 1 -- (28-ounce) can crushed plum tomatoes, undrained
  • 1 tablespoon tomato paste
  • 1 teaspoon sugar
  • 1 teaspoon coarse salt
  • 1 tablespoon dried oregano
  • 1 tablespoon dried basil
  • 1/2 teaspoon crushed red pepper
  • 1/2 teaspoon coarsely ground black pepper
  • Lasagna:
  • 2 1/2 cup whole-milk ricotta cheese
  • 2 -- (10-ounce) packages frozen spinach, thawed, drained and squeezed dry
  • 1 -- egg
  • 9 -- no-cook lasagna noodles
  • 1 pound part-skim mozzarella cheese, thinly sliced
  • 2/3 cup grated Parmigiano Reggiano cheese


  1. To prepare sauce, heat olive oil in a large saucepan. Add onion and garlic; cook until soft and translucent, but not brown.
  2. Add tomatoes, tomato paste, sugar, salt, oregano, basil, crushed red pepper and black pepper; stir well. Bring to a boil; simmer, uncovered, 30 minutes. Let cool slightly.
  3. Preheat oven to 375F.
  4. To prepare lasagna, combine ricotta cheese, spinach and egg in a large bowl; mix well.
  5. Coat the bottom of a 13 x 9-inch baking pan with a third of the tomato sauce. Cover sauce with 3 noodles without overlapping (break noodles to fit), half the ricotta mixture and half the mozzarella slices. Add half the remaining sauce, 3 noodles, remaining ricotta mixture and remaining mozzarella. Top with remaining 3 noodles, remaining sauce and Parmigiano Reggiano cheese. To make ahead of time, cover with foil and refrigerate 6 to 8 hours or overnight.
  6. Place pan on baking sheet. Bake, uncovered, 40 minutes, or until bubbly. Let stand about 15 minutes before cutting into squares.