Blue Crab Marinara with Stuffed Shells Florentine: An Elegant & Easy Seafood Pasta Recipe
Dive into a culinary experience that beautifully marries classic Italian comfort with the exquisite flavors of the sea. This recipe takes the beloved, tried-and-true Florentine-style stuffed shells – brimming with creamy ricotta and tender spinach – and elevates them to an entirely new level of gourmet delight with a vibrant, fresh blue crab marinara. The result is a dish that’s not only incredibly elegant, making it perfect for special occasions or entertaining, but also surprisingly approachable and straightforward to prepare for any weeknight.
Imagine perfectly cooked pasta shells, each generously filled with a savory blend of ricotta, spinach, and Parmesan, nestled in a rich tomato sauce infused with the sweet, delicate meat of blue crab. This isn’t just another stuffed pasta dish; it’s a symphony of textures and tastes that will impress even the most discerning palate. The Florentine filling provides a comforting, earthy contrast to the bright and briny notes of the crab marinara, creating a harmonious balance that is truly unforgettable.

The Inspiration Behind This Exquisite Dish
The world of pasta offers an endless array of possibilities for fillings and sauces, and while stuffed shells are a classic, we’re always looking for ways to innovate and excite the taste buds. This particular creation stems from a fascinating culinary anecdote. I often work with a group of bachelors who, understandably, frequent local restaurants. Time and again, I heard them rave about a local crab shack and their “awesome crab marinara.” The idea of combining the rich, tangy essence of marinara with the sweet succulence of crab was instantly captivating.
Though I never had the chance to visit the specific restaurant, the concept stuck with me. Why not take that brilliant idea of crab-infused marinara and pair it with something truly comforting and satisfying? Stuffed shells Florentine immediately came to mind. It’s a dish that embodies both rustic charm and sophisticated flavor. By adding fresh blue crab to the marinara, we transform a familiar classic into a gourmet masterpiece that feels both familiar and excitingly new.
This recipe was designed to be easy to assemble, allowing you to create a restaurant-quality meal without spending hours in the kitchen. And like many pasta dishes, especially those baked with cheese, the leftovers often taste even better the next day, making it an ideal choice for meal prepping or enjoying throughout the week. The flavors meld and deepen overnight, rewarding you with another delicious meal.
Why Blue Crab Marinara with Stuffed Shells Florentine?
A Symphony of Flavors and Textures
This dish truly stands out due to its exquisite combination of ingredients. The tender jumbo pasta shells act as perfect vessels for the creamy Florentine filling – a delectable mixture of part-skim ricotta, fresh spinach, and aromatic herbs like Italian flat-leaf parsley and basil. This filling is light yet satisfying, offering a wonderful counterpoint to the robust marinara.
The star of the show, however, is undoubtedly the blue crab marinara. Blue crab offers a unique sweetness and delicate texture that elevates a simple tomato sauce into something truly extraordinary. Unlike heavier red meats, the crab keeps the marinara feeling fresh and vibrant, while still imparting a luxurious depth of flavor. When baked, the cheeses melt into a gooey, irresistible topping, creating layers of indulgence with every bite.
Perfect for Any Occasion
Despite its elegant presentation, this Blue Crab Marinara with Stuffed Shells Florentine is surprisingly versatile. It’s sophisticated enough to serve at a dinner party, impressing your guests with its unique flavor profile and beautiful appearance. Yet, it’s also comforting and straightforward enough for a weeknight family dinner. The prep time is minimal, and most of the cooking happens in the oven, allowing you to attend to other tasks or simply relax while dinner bakes to perfection.

Tips for Crafting the Perfect Blue Crab Marinara with Stuffed Shells Florentine
Choosing Your Crab
For the best flavor, opt for fresh lump blue crab meat. It has a sweet, delicate taste and a beautiful flaky texture that truly shines in the marinara. If fresh blue crab isn’t readily available, high-quality canned or frozen lump crab meat can be a good substitute. Just be sure to drain it thoroughly to avoid excess moisture in your sauce.
Mastering the Marinara
While this recipe calls for 2 cups of marinara, don’t hesitate to use your favorite homemade recipe if you have one. If using store-bought, choose a high-quality brand that you love. The key is to truly infuse the sauce with the crab flavor. Gently folding the crab into the warm marinara allows its sweetness to meld beautifully with the tomato and herbs, creating a rich, seafood-forward sauce that is utterly delicious.
Cooking the Shells Just Right
The secret to perfect stuffed shells is cooking them al dente. They will continue to cook in the oven, so slightly undercooking them during the boiling stage ensures they remain firm and don’t become mushy after baking. Rinsing them quickly with cold water after draining helps stop the cooking process and makes them easier to handle for stuffing.
The Florentine Filling
The spinach and ricotta filling is the heart of the “Florentine” style. Sautéing the spinach with onion and garlic before mixing adds depth of flavor and removes excess moisture, preventing a watery filling. Ensure you chop the wilted spinach finely for a smooth, consistent texture in your shells. The combination of ricotta, egg (as a binder), Parmesan, and herbs creates a rich, savory, and wonderfully creamy interior.
Layering for Success
Spreading a layer of the crab marinara at the bottom of the baking dish prevents the shells from sticking and ensures every bite is enveloped in flavor. Generously stuffing each shell with the ricotta mixture, then nestling them into the sauce, creates a beautiful presentation and even cooking. Don’t forget the final layer of mozzarella for that irresistible golden-brown, bubbly top.

Blue Crab Marinara with Stuffed Shells Florentine
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Ingredients
- 30 large pasta shells uncooked
- 2 cup Marinara sauce
- 8 oz fresh lump crab meat preferably Blue Crab
- 1 Tbsp extra virgin olive oil
- 1 medium yellow onion diced
- 2 cloves garlic minced
- 5 oz fresh spinach leaves ~4 cups
- 15 oz part-skim ricotta cheese
- 1 egg lightly beaten
- ¼ cup chopped Italian flat-leaf parsley
- ¼ cup chopped fresh basil
- 1 tsp kosher salt plus more for the pasta water
- ¼ tsp fresh cracked black pepper
- ½ cup fresh shredded Parmigiano-Reggiano cheese
- 2 cup shredded mozzarella cheese divided
Instructions
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Preheat your oven to 350°F (175°C).
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In a medium bowl, gently combine the marinara sauce and the fresh lump crab meat. Set this delicious crab marinara aside.
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Bring a large pot of salted water to a rolling boil. Add a generous handful of kosher salt to the water, then carefully add the large pasta shells. Cook the shells to al dente according to the package directions. Drain the pasta and immediately rinse it quickly with cold water to stop the cooking process and prevent sticking.
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While the pasta is cooking, heat a large, nonstick skillet over medium-high heat. Add the extra virgin olive oil, then the diced yellow onions and minced garlic. Sauté, stirring occasionally, until the onions are translucent and fragrant, about 3-5 minutes. Add the fresh spinach leaves and cook, tossing frequently, until the spinach is completely wilted, usually just 1-2 minutes. Transfer the spinach mixture to a cutting board and chop it finely.
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In a separate medium bowl, combine the finely chopped spinach mixture, part-skim ricotta cheese, lightly beaten egg, kosher salt, chopped Italian flat-leaf parsley, chopped fresh basil, fresh cracked pepper, shredded Parmigiano-Reggiano, and 1 cup of shredded mozzarella cheese. Mix everything until well combined.
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Spread the blue crab marinara evenly across the bottom of a 9×13 inch baking dish. One by one, take a cooked pasta shell, spoon in approximately two tablespoons of the ricotta-spinach mixture, and carefully place it on top of the crab marinara in the baking dish. Continue until all shells are stuffed and arranged. Cover the baking dish tightly with aluminum foil and bake in the preheated oven for 30 minutes. After 30 minutes, remove the foil, sprinkle the remaining 1 cup of mozzarella cheese over the shells, and bake for an additional 5-10 minutes, or until the cheese is melted and bubbly and the edges are lightly golden. Serve immediately. This recipe generously serves 6 people.
Serving Suggestions & Perfect Pairings
This Blue Crab Marinara with Stuffed Shells Florentine is a complete meal in itself, but a few simple additions can elevate the dining experience further. Serve it alongside a crisp green salad with a light vinaigrette to balance the richness of the pasta and cheese. A loaf of warm, crusty Italian bread is perfect for soaking up any leftover sauce. For drinks, a light-bodied white wine such as Pinot Grigio or Sauvignon Blanc would complement the seafood beautifully, or opt for a sparkling water with a lemon twist for a non-alcoholic option.
Leftovers and Storage
One of the best qualities of baked pasta dishes is how well they keep, and this Florentine stuffed shells recipe is no exception. Leftovers can be stored in an airtight container in the refrigerator for up to 3-4 days. To reheat, simply place individual portions in the microwave or cover the baking dish with foil and warm in a preheated oven until heated through. The flavors often deepen overnight, making the next day’s meal even more enjoyable.
If you’re looking to prepare this dish in advance, you can assemble the entire casserole, cover it tightly with foil, and refrigerate it for up to 24 hours before baking. You might need to add an extra 10-15 minutes to the baking time if cooking directly from the refrigerator.
Variations to Explore
While this recipe is perfect as is, you can always experiment with variations to suit your taste or what you have on hand:
- Different Seafood: If blue crab isn’t available, or you simply prefer something different, consider using lump crab meat (from Dungeness or Snow crab), bay scallops, or even small shrimp in the marinara.
- Cheesy Alternatives: While Parmigiano-Reggiano and mozzarella are classic, a blend of Italian cheeses like provolone or fontina could add another layer of flavor. A sprinkle of crumbled feta on top could also introduce a tangy twist.
- Spice It Up: For those who love a bit of heat, a pinch of red pepper flakes added to the marinara or even to the spinach mixture will provide a delightful kick.
- Herbaceous Boost: Feel free to experiment with other fresh herbs. A touch of fresh oregano or thyme could complement the tomato and crab flavors beautifully.
This Blue Crab Marinara with Stuffed Shells Florentine truly brings together the best of land and sea in a comforting, elegant, and utterly delicious package. It’s a dish that celebrates the joy of home cooking with a sophisticated twist, guaranteed to become a new favorite in your recipe collection.