Creamy Butternut Squash Stuffed Shells with Ricotta and Spinach

Prep: 25 minCook: 30 min6 servingsmediumItalian
Creamy Butternut Squash Stuffed Shells with Ricotta and Spinach

These stuffed shells combine the natural sweetness of roasted butternut squash with creamy ricotta cheese, fresh spinach, and aromatic basil for a comforting autumn meal. The tender pasta shells are filled with a rich, herb-seasoned mixture and baked in marinara sauce until bubbly. Perfect for family dinners or entertaining, this dish offers a satisfying balance of vegetables and cheese that appeals to both adults and children. The hint of nutmeg adds warmth that complements the squash beautifully.

Ingredients

6 servings
  • 2 ½ cups ricotta cheese
    cottage cheese1:1vegetarian

    slightly different texture

    Full guide →
  • ½ cup Parmesan, freshly grated
  • 1 large egg
  • 1 small handful fresh basil, chopped
  • ½ teaspoon nutmeg(optional)
  • salt and pepper
  • 2 cups butternut squash, roasted
    sweet potato1:1vegetariangluten-freedairy-free

    similar sweetness

    Full guide →
  • 4 ounces frozen chopped spinach, thawed and drained
  • 1 12-ounce package jumbo pasta shells
  • 1 24-ounce jar marinara sauce
    alfredo sauce1:1vegetarian

    richer, creamier

    Full guide →
  • 1 ½ cups mozzarella, shredded
    provolone1:1vegetariandairy-free

    sharper flavor

    Full guide →

Instructions

  1. 1

    Mix together ricotta, Parmesan, egg, basil, nutmeg, salt and pepper until fully combined

  2. 2

    Add roasted butternut squash and chopped spinach, stir to incorporate

  3. 3

    Chill the mixture in refrigerator

  4. 4

    Cook jumbo pasta shells in salted boiling water according to package instructions until al dente

  5. 5

    Drain shells and spread on parchment paper to cool

  6. 6

    Preheat oven to 375℉

  7. 7

    Gently squeeze open each cooled shell and stuff with generous teaspoon of filling

  8. 8

    Lay stuffed shells upright in casserole dish in single layer

  9. 9

    Top with remaining marinara sauce, spreading evenly to cover all shells

  10. 10

    Scatter shredded mozzarella over the top

  11. 11

    Cover casserole with aluminum foil and bake for 20 minutes

  12. 12

    Remove foil and bake additional 10 minutes

  13. 13

    Allow stuffed shells to rest 10 minutes before serving

Tips

Tip 1

Roast butternut squash ahead of time by cutting into cubes, tossing with olive oil, and baking at 400℉ for 25-30 minutes until tender.

Tip 2

Make sure to thoroughly drain thawed spinach by pressing it in a clean kitchen towel to remove excess moisture.

Tip 3

Let shells cool completely before stuffing to prevent tearing and make handling easier.

Good to Know

Storage

Refrigerate leftovers for up to 3 days in covered container. Reheat in 350℉ oven until heated through.

Make Ahead

Assemble shells up to 1 day ahead, cover tightly and refrigerate. Add 10-15 minutes to baking time if cooking from cold.

Serve With

Serve hot with side salad and garlic bread. Garnish with fresh basil leaves if desired.

Common Mistakes

Watch

Don't overcook pasta shells or they'll tear during stuffing

Watch

Thoroughly drain spinach to avoid watery filling

Watch

Let dish rest before serving to prevent filling from spilling out

Substitutions

Dairy-Free Swaps

butternut squash
sweet potato1:1vegetariangluten-freedairy-free

similar sweetness

Full guide →
mozzarella
provolone1:1vegetariandairy-free

sharper flavor

Full guide →

General Alternatives

ricotta cheese
cottage cheese1:1vegetarian

slightly different texture

Full guide →
jumbo shells
manicotti tubes1:1vegetarian

different shape

marinara sauce
alfredo sauce1:1vegetarian

richer, creamier

Full guide →
Find more substitutions →

FAQ

Can I freeze these stuffed shells?

Yes, assemble without baking, wrap tightly and freeze up to 3 months. Bake from frozen, adding 20-30 minutes to cooking time.

What if I don't have roasted butternut squash?

Cube raw squash, toss with oil and roast at 400℉ for 25-30 minutes until tender. You can also use canned pumpkin puree.

How do I know when the shells are done?

Shells should be heated through and cheese melted and lightly golden. Internal temperature should reach 165℉.