Side view of ricotta stuffed shells.
5 from 1 vote

Spinach and Ricotta Stuffed Shells

These spinach and ricotta stuffed shells are a family favorite meal. The sauce has a unique flavor, setting them apart from any other stuffed shell recipe.
Course Main Course
Cuisine Italian
Prep Time 35 minutes
Cook Time 40 minutes
Total Time 1 hour 15 minutes
Servings 6 people
Calories 618kcal
Author Longbourn Farm • Alli Kelley


  • 1 pound large shells
  • 1 cup mozzarella cheese grated
  • 1/4 cup parmesean

For the Filling

  • 15 oz ricotta cheese
  • 1 large egg
  • 1/2 cup parmesan cheese finely grated
  • 1 cup spinach finely chopped (see note)
  • 1 teaspoon salt
  • 1/2 teaspoon pepper

For the Sauce

  • 2 tablespoons olive oil
  • 4 cloves garlic crushed or finely minced
  • 1 pinch red pepper flakes about 1/8 teaspoon
  • 30 oz crushed tomatoes
  • 1 tablespoon sugar
  • 1 teaspoon lemon zest about 1 lemon
  • 1 tablespoon fresh parsley chopped
  • 1 tablespoon fresh basil chopped


  • Preheat oven to 350 degrees
  • Boil pasta shells until just shy of al dente - they should have a bit of a bite left to them.

For the Sauce

  • Heat oil in a large skillet until just shimmering.
  • Add the garlic and red pepper flakes and cook until fragrant, about 1 minute.
  • Add the crushed tomatoes, sugar, and lemon zest.
  • Simmer 7 minutes.
  • Stir in fresh herbs.

For the Filling

  • While the pasta cooks and the sauce simmers, combine all the filling ingredients except the spinach and mix well.
  • Gently fold in the spinach until evenly dispersed. Extreme mixing will turn the ricotta green.

To Assemble

  • In a 9x13 casserole dish, spread enough sauce to coat the bottom evenly.
  • Put about 1 -1 1/2 tablespoons of the ricotta mixture in each shell. Some of the shells will break and won't be useable, usually I end up with a few leftover.
  • Place stuffed shells in the pan in a single layer.
  • Spoon remaining sauce evenly over the top.
  • Sprinkle with 1 cup mozzarella cheese and 1/4 cup parmesan.
  • Cover with foil and bake 25-30 minutes, until bubbly.
  • Remove foil and bake an additional 10 minutes, until cheese is fully melted and bubbly.


Pack the spinach in the measuring cup, you can use fresh or frozen
If you would like to freeze part of this recipe or are doubling it for freezing, just divide up the shells into portions appropriate for you or your family. Disposable pie plates or bread pans work great for this. Assemble as instructed, except the final topping with mozzarella and parmesan. I find those dry out in the freezer and are better when added fresh right before baking. Thaw before baking, or lower the oven temperature by 25 degrees and place frozen in a cold oven. I check halfway through cooking and sprinkle a couple tablespoons of water over the top if things are looking dry. Keep covered the whole time if baking directly from the freezer. 
If you'd like to make this dish more hearty, adding cooked meat to the sauce or the filling is a great way to do that.


Calories: 618kcal | Carbohydrates: 72g | Protein: 30g | Fat: 23g | Saturated Fat: 11g | Cholesterol: 86mg | Sodium: 971mg | Potassium: 726mg | Fiber: 5g | Sugar: 10g | Vitamin A: 1425IU | Vitamin C: 16.4mg | Calcium: 466mg | Iron: 3.6mg