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+ servings

Spinach Lasagna

A comforting yet wholesome lasagna made with layers of spinach, ricotta, and a rich tomato sauce, perfect for feeding a crowd and pleasing even the pickiest eaters.
Prep Time 30 minutes
Cook Time 55 minutes
Total Time 1 hour 25 minutes
Serving Size 10 servings

Ingredients

Lasagna Ingredients

  • 12 pieces lasagna noodles Regular boiled or 9–12 no-boil sheets
  • 2 tablespoons olive oil
  • 1 medium onion, finely chopped
  • 3 cloves garlic, minced
  • 28 oz crushed tomatoes or 4 cups marinara sauce
  • 1 teaspoon dried oregano or Italian seasoning
  • 10-12 oz frozen spinach (thawed and squeezed) or fresh spinach (sauteed)
  • 15 oz ricotta cheese Use part-skim for a lighter version
  • 1 large egg Helps bind the ricotta
  • 1/2 cup grated Parmesan cheese
  • 3 cups shredded mozzarella, divided
  • Salt and black pepper to taste
  • Pinch freshly grated nutmeg (optional) Adds warmth
  • Fresh basil or parsley for garnish (optional)

Instructions

Preparation

  • Preheat the oven to 375°F (190°C).
  • Heat olive oil in a skillet over medium. Sauté onion until soft (5–7 minutes). Add garlic and cook for 30 seconds.
  • Stir in crushed tomatoes, oregano, salt, and pepper and simmer for 10–15 minutes to thicken.
  • Prepare the spinach: Sauté fresh spinach until wilted or thaw frozen spinach and squeeze out all water.
  • In a bowl, combine ricotta, egg, Parmesan, nutmeg (if using), salt, and pepper. Fold in half of the chopped spinach.
  • If using regular noodles, boil according to package instructions until al dente, then drain.

Assembly & Cooking

  • Spread a thin layer of sauce on the bottom of a 9x13-inch pan.
  • Layer noodles, half the ricotta mixture, one third of the mozzarella, and one third of the sauce. Repeat layers.
  • Finish with noodles, remaining sauce, and remaining mozzarella.
  • Cover tightly with foil and bake for 25–30 minutes (35–40 minutes if using no-boil noodles).
  • Remove foil and bake for an additional 10–15 minutes until cheese is bubbly and browned.
  • Let the lasagna rest for 10–15 minutes before slicing.

Notes

Keeps well for leftovers and can be assembled ahead of time. Ensure to refrigerate within 2 hours of baking. Freezes well up to 3 months; thaw overnight in the fridge.