Spinach Lasagna

5 from 6 votes

This quick and easy spinach lasagna recipe is a simple and cozy casserole that comes together with just 20 minutes of prep!

Course Dinner

Cuisine American, Italian

Keyword spinach lasagna, spinach lasagna recipe, vegetarian lasagna, vegetarian lasagna recipe

Prep Time 20

Cook Time 45

Resting Time 15

Total Time 1 20

Servings people

Calories 306kcal

Author Blair Lonergan

Ingredients

1 (10 ounce) package frozen chopped spinach, thawed
15 ounces ricotta cheese (or sub with 16 ounces small curd cottage cheese, excess liquid strained)
2 cups shredded mozzarella cheese, divided
½ cup grated Parmesan cheese, divided
1 large egg, lightly beaten
1 tablespoon chopped fresh basil (or 1 teaspoon dried basil)
½ teaspoon dried oregano
½ teaspoon kosher salt
½ teaspoon garlic powder
Pinch of ground nutmeg
2 ¾ cups store-bought or homemade marinara sauce (from a large 45-ounce jar or from 2 smaller jars)
9 oven-ready "no-boil" lasagna noodles

Instructions

Preheat oven to 400°F. Grease a deep 9 x 13-inch baking dish; set aside. Squeeze all of the liquid out of the spinach. I like to use a dish towel for this, and just keep squeezing until you wring out as much water as possible. Place spinach in a large bowl. Add ricotta, 1 cup of the mozzarella, ¼ cup of the Parmesan, egg, basil, oregano, salt, garlic powder, and nutmeg to the bowl with the spinach. Stir really well with a fork to combine.
Spread about ½ cup of the marinara sauce in the bottom of the prepared baking dish. Top with 3 no-boil lasagna noodles (or as many as you need to cover a single layer in the dish), ½ of the ricotta mixture, and ¾ cup of marinara sauce.
Add 3 more noodles to the dish, the remaining ½ of the ricotta mixture, and ¾ cup of marinara sauce. Finally, add another layer of 3 noodles, spread remaining ¾ cup of marinara sauce on top, and sprinkle with the remaining 1 cup of mozzarella cheese and the remaining ¼ cup of Parmesan cheese. Cover the dish with aluminum foil.
Bake for 35 minutes. Remove foil, and bake for another 5-10 minutes (or until heated through and cheese on top is browned). Let stand for at least 15 minutes before slicing and serving.

Notes

Cooking for Two? Divide the full recipe between two smaller 8-inch square baking dishes. That way you get two meals with the same amount of effort, and you can freeze one for a later date. Alternatively, you can cut all of the ingredients in half and prepare one lasagna in an 8-inch square dish. The baking instructions remain the same.

Nutrition