Spinach and Ricotta Stuffed Shells Recipe: Cheesy Baked Pasta

Spinach and ricotta stuffed shells are the baked pasta dinner that everyone asks for twice. Jumbo pasta shells are filled with a creamy spinach and ricotta mixture, nestled into tomato sauce, blanketed with mozzarella, and baked until golden and bubbling — comfort food that looks as good as it tastes.

The filling is the star, and it comes together in minutes: ricotta for creaminess, wilted spinach for colour and substance, Parmesan for salty depth, and an egg to bind it all. Once the shells are stuffed and sauced, the oven does the rest, and the hardest part is waiting the ten minutes they need to rest before serving.

Bubbling, golden, and straight from the oven — stuffed shells done right.

Recipe Info

• Prep time: 25 minutes
• Cook time: 35 minutes
• Total time: 1 hour
• Servings: 4
• Calories: ~520 kcal per serving

Ricotta, spinach, and plenty of cheese — simple ingredients, generous comfort.

Ingredients

• 24 jumbo pasta shells (about 250 g), plus a few extra in case of breakage
• 300 g fresh spinach, washed
• 400 g / 1 2/3 cups ricotta cheese
• 150 g / 1 1/2 cups shredded mozzarella, divided
• 50 g / 1/2 cup grated Parmesan, plus extra to serve
• 1 large egg, lightly beaten
• 2 cloves garlic, minced
• 1/2 tsp fine salt
• 1/2 tsp black pepper
• 1/4 tsp ground nutmeg
• 600 g / 2 1/2 cups tomato pasta sauce (marinara), divided
• 1 tbsp olive oil
• Fresh basil leaves, to serve
• Garlic bread or a green salad, to serve

Creamy ricotta, tender spinach, and cheese that pulls — this is comfort pasta.

Instructions

1. Heat the oven and cook the shells: Heat the oven to 190 °C / 375 °F. Boil the shells in a large pot of salted water for 2 minutes less than the packet time — they should be flexible but still firm, as they will finish in the oven. Drain, rinse briefly under cold water, and lay out on a tray so they do not stick together.
2. Wilt the spinach: Heat the olive oil in a large pan over medium heat. Add the spinach in batches, stirring until just wilted, about 2–3 minutes total. Transfer to a colander, press out as much water as possible, then chop finely. Squeezing the spinach dry is essential — wet spinach makes a watery filling.
3. Make the filling: In a bowl, combine the chopped spinach, ricotta, half the mozzarella, the Parmesan, the beaten egg, garlic, salt, pepper, and nutmeg. Mix until evenly combined and taste for seasoning.
4. Assemble the dish: Spread 200 g / about 1 cup of the tomato sauce over the base of a baking dish (about 23 x 33 cm). Fill each shell generously with the ricotta mixture — a small spoon or piping bag makes this easy — and arrange them in a single layer, open side up, in the dish.
5. Sauce and top: Spoon the remaining sauce over and around the shells, leaving the tops slightly exposed so they crisp a little. Scatter the remaining mozzarella evenly over the top.
6. Bake: Cover tightly with foil and bake for 20 minutes. Remove the foil and bake for a further 12–15 minutes until the cheese is golden and bubbling and the sauce is simmering at the edges.
7. Rest and serve: Rest for 10 minutes so the filling sets and the shells hold their shape when served. Top with fresh basil and extra Parmesan, and serve with garlic bread or a green salad.

Tips & Variations

• Squeeze the spinach bone dry. This is the single most important step. Press it in a colander, then again in a clean tea towel — any water left behind thins the filling and the sauce.
• Undercook the shells. Shells that are fully cooked before baking turn soft and tear when filled. Two minutes under the packet time is the sweet spot.
• Use a piping bag for neat filling. A zip-top bag with one corner snipped off fills shells in half the time and keeps hands clean — especially handy if you are doubling the recipe.
• Make it ahead. Assemble the dish up to a day in advance, cover, and refrigerate. Add 10 minutes to the covered baking time when baking from cold.
• Add mushrooms for extra depth. Finely chopped mushrooms, sautéed until golden, stirred into the filling add an earthy richness that pairs beautifully with the ricotta.
• Swap the sauce. A creamy tomato sauce or a simple basil pesto thinned with a little cream both work wonderfully in place of marinara.
• Freeze beautifully. Freeze the assembled, unbaked dish for up to 3 months. Bake from frozen, covered, at 190 °C / 375 °F for 45 minutes, then uncovered for 15 minutes until bubbling.

Nutrition Note

This is an approximate guide only, not dietary advice. One serving contains roughly 520 kcal, 26 g protein, 24 g fat, and 52 g carbohydrates. Spinach contributes iron, folate, and vitamin K, while ricotta and mozzarella provide calcium and protein. To lighten it, use part-skim ricotta and mozzarella and serve with a large salad instead of garlic bread.

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FAQ

Can I use frozen spinach instead of fresh?

Yes — 300 g of frozen spinach, thawed and squeezed very dry, replaces the fresh spinach perfectly. In fact, frozen spinach is often easier to squeeze dry, which makes the filling even better.

Do I have to use jumbo shells?

Jumbo shells (conchiglioni) are ideal because they hold a generous amount of filling. In a pinch, large pasta tubes like manicotti work with the same filling, though the presentation is different.

Can I make stuffed shells without eggs?

You can — the egg binds the filling, but the shells still hold together well without it if the ricotta is thick. Add 2 tablespoons of grated Parmesan extra to help the filling firm up.

How do I store leftover stuffed shells?

Refrigerate in an airtight container for up to 4 days. Reheat, covered, in the oven at 180 °C / 350 °F for 15–20 minutes, or microwave individual portions until steaming throughout.

Why did my shells fall apart?

Usually they were overcooked before filling, or handled while still hot and fragile. Cook them 2 minutes under the packet time, rinse briefly, and let them cool slightly before filling.

Try these spinach and ricotta stuffed shells for your next family dinner — they are the rare recipe that feels special yet comes together on a weeknight. Tell us in the comments whether you kept them classic or added your own twist.