Perfectly cheesy, hearty, and comforting, these Stuffed Shells with Spinach are one delicious family meal. Jumbo pasta shells are filled with ricotta, mozzarella, parmesan, and spinach and baked in marinara sauce for one tasty bite.

dish of stuffed shells with spinach.

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Why We Love This Stuffed Shells with Spinach Recipe

If you are looking for a comforting pasta dish, then you can’t go wrong with these tasty spinach stuffed shells. Perfectly cheesy and creamy, they are always a hit with the whole family.

  • Simple. You don’t need a long list of ingredients to make this yummy pasta recipe.
  • Vegetarian. This is a super tasty idea for meatless Mondays because you won’t even miss the meat!
  • Make Ahead. Great to eat the night you make it, but the leftovers taste pretty great too!

Variations on Spinach Stuffed Shells

Use your favorite pesto, Alfredo, or tomato sauce for this stuffed shells recipe.

casserole dish with stuffed shells with spinach.
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How to Store and Reheat 

Store leftover stuffed shells with spinach in an airtight container in the refrigerator for up to 4 days. Reheat in the oven or microwave until warmed through.

How to Freeze 

Let the casserole cool, cover it, and place it in the freezer. For single servings, portion out the pasta in freezer-safe containers so it’s ready to reheat at a later time.

To reheat frozen unbaked stuffed shells, let them thaw in the refrigerator overnight. Once thawed, bake according to the directions below. To reheat baked stuffed shells, let them thaw in the refrigerator overnight. Once thawed, reheat in the oven until warmed through. 

Serving Suggestions

These spinach stuffed shells are great to serve just by themselves or pair them with some cooked veggies or a salad for some goodness. Try them with Caprese Salad, Cheesy Baked Green Beans, Cucumber Tomato Salad, or Air Fryer Ranch Broccoli.

spinach stuffed shells on a plate.

More Pasta Recipes To Try

Notes from the Test Kitchen

  • Take care not to overcook the pasta shells. After boiling, place them upside-down on a baking sheet to dry before filling.
  • Make sure to cover the shells while baking; otherwise, they may burn.
Recipe Card

Stuffed Shells with Spinach Recipe

4.56 from 9 votes
Prep: 20 minutes
Cook: 20 minutes
Bake Time: 35 minutes
Total: 1 hour 15 minutes
Servings: 16 shells
Author: Becky Hardin
featured spinach stuffed shells
When it comes to comfort food, pasta is always a great option! These spinach stuffed shells are so delicious, I just know you are going to love them!
Step-by-step photos can be seen below the recipe card.
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Ingredients 

  • 16 jumbo pasta shells cooked to al dente
  • 1 tablespoon olive oil
  • 3 garlic cloves minced
  • 4 cups lightly packed baby spinach leaves
  • cups ricotta cheese
  • 1 cup shredded mozzarella cheese plus more for topping
  • ¾ cups grated parmesan cheese plus more for serving
  • 1 egg
  • 1 teaspoon salt
  • ½ teaspoon freshly ground black pepper
  • cups marinara sauce
  • Fresh basil leaves for serving

Instructions 

  • Preheat the oven to 375°F and spray a shallow 8×8 inch baking dish with nonstick spray; set aside.
    how to make spinach stuffed shells
  • Bring a pot of water on the stovetop to a boil. Cook the pasta shells to al dente. After cooking the pasta shells, drain and place them upside down on a baking sheet to dry.
    16 jumbo pasta shells
  • Heat the olive oil in a large skillet over medium-high heat. Add the garlic and cook until fragrant, about a minute or two.
    1 tablespoon olive oil, 3 garlic cloves
  • Add the spinach and cook, stirring occasionally, for about 4 minutes until the leaves start to wilt. Remove from the heat and let the spinach cool.
    4 cups lightly packed baby spinach leaves
    how to make spinach stuffed shells
  • In a large mixing bowl, stir together the spinach, ricotta, mozzarella, parmesan, egg, salt, and pepper until thoroughly combined.
    1½ cups ricotta cheese, 1 cup shredded mozzarella cheese, ¾ cups grated parmesan cheese, 1 egg, 1 teaspoon salt, ½ teaspoon freshly ground black pepper
    how to make spinach stuffed shells
  • Pour half of the marinara sauce into the bottom the baking dish.
    1½ cups marinara sauce
  • Working 1 shell at a time, generously fill each pasta shell with the spinach and ricotta mixture. Carefully place each shell in the baking dish, filling side up.
    how to make spinach stuffed shells
  • Once all shells are filled and in the baking dish, cover with the remaining marinara sauce and a sprinkle of shredded mozzarella cheese.
    how to make spinach stuffed shells
  • Cover the baking dish with aluminum foil and bake for 20 minutes.
  • Remove the aluminum foil and bake for an additional 15 minutes, until the cheese starts to bubble and begins to brown.
  • Serve with a sprinkle of parmesan cheese and fresh basil leaves.
    Fresh basil leaves for serving
    how to make spinach stuffed shells

Video

Becky’s Tips

  • Jumbo Pasta Shells: Keep an eye on the pasta shells so they don’t overcook. After boiling, set them upside down on a baking sheet to dry.
  • Marinara Sauce: Use your favorite, store-bought or homemade! Or try pesto, Alfredo sauce, or another tomato sauce.
  • Wrap the baking dish tightly in foil for the start of baking, if you don’t, your pasta is likely to burn on the top.
Storage: Store stuffed shells with spinach in an airtight container in the refrigerator for up to 4 days or in the freezer for up to 3 months.
Calories: 131kcalCarbohydrates: 9gProtein: 8gFat: 7gSaturated Fat: 4gPolyunsaturated Fat: 1gMonounsaturated Fat: 2gTrans Fat: 1gCholesterol: 32mgSodium: 411mgPotassium: 178mgFiber: 1gSugar: 1gVitamin A: 1008IUVitamin C: 4mgCalcium: 150mgIron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Did you make this? Leave a comment!

How to Make Stuffed Shells with Spinach Step by Step

Cook the Shells: Preheat the oven to 375°F and spray a shallow 8×8-inch baking dish with nonstick spray; set aside. Bring a pot of water on the stovetop to a boil. Cook 16 jumbo pasta shells to al dente. After cooking the pasta shells, drain and place them upside down on a baking sheet to dry.

ingredients for stuffed shells with spinach in individual bowls.

Sauté the Spinach: Heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Add 3 minced cloves of garlic and cook until fragrant, about a minute or two. Add 4 cups of spinach and cook, stirring occasionally, for about 4 minutes until the leaves start to wilt. Remove from the heat and let the spinach cool.

spinach and garlic in a pan.

Make the Filling: In a large mixing bowl, stir together the cooked spinach, 1½ cups of ricotta cheese, 1 cup of shredded mozzarella cheese, ¾ cup of grated Parmesan cheese, 1 egg, 1 teaspoon of salt, and ½ teaspoon of black pepper until thoroughly combined.

spinach and cheeses in a glass bowl.

Stuff the Shells: Pour ¾ cup of marinara sauce into the bottom the baking dish. Working 1 shell at a time, generously fill each pasta shell with the spinach and ricotta mixture. Carefully place each shell in the baking dish, filling side up.

stuffed shells with spinach in a casserole dish.

Bake the Shells: Once all shells are filled and in the baking dish, cover with the remaining ¾ cup of marinara sauce and a sprinkle of shredded mozzarella cheese. Cover the baking dish with aluminum foil and bake for 20 minutes.

cheese topped stuffed shells in a casserole dish.

Garnish and Serve: Remove the aluminum foil and bake for an additional 15 minutes, until the cheese starts to bubble and begins to brown. Serve with a sprinkle of parmesan cheese and fresh basil leaves.

stuffed shells with spinach in a casserole dish with basil.
What size baking dish do I need for this stuffed shells recipe?

I made this recipe in a 8×8-inch baking dish. Use a bigger dish if you want to double the recipe.

Do I cook the pasta shells before filling and baking them?

Yes. Cook the pasta shells to al dente, following the package directions. I recommend cooking a few extra shells to have on hand in case any break during the cooking or filling process.

Can I use frozen spinach?

Yes, both fresh and frozen spinach work wonderfully. If using frozen spinach, defrost it and remove any excess moisture before adding it to the cheese mixture. This will prevent the cheese mixture from becoming wet and soggy.

How can I add meat to this recipe?

Yes! If you prefer a little meat with your pasta, a ground protein like chicken, beef or turkey will work well. Brown it in a skillet first before mixing with the other filling ingredients.

What can I use instead of ricotta cheese?

Cottage cheese is a great replacement for ricotta as it has a similar texture. Goat cheese would also work great and will have a tangier flavor.

Meet Becky Hardin

Becky Hardin is a wife and mother living in Saint Louis Missouri. She founded The Cookie Rookie in 2012 as a creative way to share recipes. Now, she is a trusted resource for easy cooking around the world, being featured in Taste of Home, The Kitchn, ABC’s Home and Family, and more. Here at The Cookie Rookie she is the editor in chief of all recipes and continues to enjoy sharing her passion for cooking for busy families. She has since founded two additional food blogs, Easy Chicken Recipes and Easy Dessert Recipes.

4.56 from 9 votes (8 ratings without comment)
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2 Comments
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Nicole Ward
Nicole Ward
November 18, 2022 4:55 pm

How much frozen spinach to equal 4 cups lightly packed fresh?5 stars

Samantha Marceau
November 18, 2022 5:15 pm
Reply to  Nicole Ward

a 10-ounce package should be plenty!