Italian Seafood Pasta with Clams and Mussels
There’s something so comforting about Italian-style seafood pasta: briny shellfish, tender pasta, and a light sauce that clings instead of cloys. This version is designed for home cooks—quick, flavorful, and built around one key step: cook the clams and mussels until their shells open, then use the cooking broth to help coat the pasta.
Recipe at a glance
- Yield: Serves 4
- Prep time: 20 minutes
- Cook time: 20–25 minutes
- Total time: 40–45 minutes
Ingredients
- Pasta: 12 oz (340 g) linguine or spaghetti
- Clams (for steaming): 1 1/2 lb (680 g) scrubbed littleneck or small clams
- Mussels (for steaming): 1 1/2 lb (680 g) mussels, scrubbed
- Olive oil: 3 tbsp
- Garlic: 4 cloves, thinly sliced
- Red pepper flakes: 1/4 to 1/2 tsp (optional)
- Tomato paste: 1 tbsp (optional for a hint of sweetness)
- Broth or water: 1 cup (240 ml) low-sodium seafood broth or water
- Lemon: zest of 1/2 lemon + 2 tbsp juice
- Butter (optional, for richness): 2 tbsp
- Parsley: 1/3 cup chopped (plus extra for serving)
- Salt and black pepper: to taste
Instructions
- Prep the clams and mussels. Keep shellfish cold until cooking. Rinse clams under cool running water and scrub mussels well. Discard any mussels that are already open and won’t close when tapped (this is a common home-safety check).
Tip: Keep each type in a bowl—don’t let their juices contaminate your counters. - Start the pasta. Bring a large pot of salted water to a boil. Cook the pasta until al dente (tender but still firm to the bite). Reserve 1 cup of pasta water, then drain.
- Sauté the aromatics. While pasta cooks, heat olive oil in a large, deep skillet or wide pot over medium heat. Add garlic (and red pepper flakes, if using) and cook 30–60 seconds, just until fragrant. Stir in tomato paste (if using) and cook 30 seconds to mellow the flavor.
- Steam the clams first. Add broth (or water) to the pan. Add clams, cover, and simmer until the shells open, 6–9 minutes. Shake the pan once or twice so clams heat evenly.
- Add mussels and finish steaming. Add mussels, recover, and cook until mussels open and clams are ready, 4–7 minutes more. You’re aiming for shellfish that are just cooked—not dry and rubbery.
- Discard unopened shells. Turn off the heat. Using a slotted spoon, remove opened shells to a bowl. Discard any clams or mussels that do not open after cooking. Strain the cooking liquid through a fine-mesh sieve into a measuring cup (to catch grit), then return 1/2 to 3/4 cup of that liquid to the skillet.
- Build the sauce and toss. Add reserved pasta water a splash at a time to the skillet (you want a light, glossy sauce). Stir in lemon zest and lemon juice, plus butter if using. Add drained pasta and toss to coat. If needed, add a bit more pasta water until the sauce clings.
- Warm through the shellfish. Add opened clams and mussels to the pasta and toss gently for 30–60 seconds—just enough to heat them through.
- Finish and serve. Taste and season with black pepper and, if needed, a small pinch of salt. Stir in chopped parsley and serve immediately with extra lemon wedges.
Quick shellfish doneness cues (so it’s tender)
- Shells open = done. Cook until clams and mussels open during steaming.
- Unopened shells = discard. Don’t gamble with shells that stay shut.
- Avoid overcooking. Once most shells have opened, stop cooking and move quickly to toss with pasta—overcooked shellfish become tough.
Tips and variations
- Ingredient swap: No mussels? Use only clams (increase to 2 lb/900 g) and keep the same method.
- Flavor variation: Add a splash of clam juice or extra lemon juice at the end instead of using tomato paste, if you prefer a brighter, purely briny broth.
- Pan size matters: Use a wide pot so shellfish steam evenly without crowding.
Serving ideas
- Serve with crusty bread to soak up the garlicky broth.
- A simple arugula salad with lemon and olive oil keeps the meal light.
- For a family-friendly table, offer extra lemon wedges so each person can control the brightness.
Storage notes
- Cool quickly: Let leftovers cool to room temperature for no more than about 2 hours, then refrigerate in a shallow container.
- Refrigerate: Enjoy within 2 days. Seafood pasta doesn’t hold long, even when it smells “fine.”
- Reheat gently: Warm in a skillet with a splash of water or broth over medium-low until hot. Avoid boiling, which can toughen shellfish.
- Best quality note: Pasta is best on day 1; leftovers may thicken as they cool.
Shellfish safety tips (quick and practical)
- Keep cold: Store shellfish in the refrigerator until you cook.
- Cook until done: Shells should open during cooking; discard any that don’t open.
- Prevent cross-contamination: Use separate utensils and wash hands, counters, and prep tools after handling raw shellfish.
- Heat thoroughly: Seafood safety guidance emphasizes cooking shellfish properly; if you’re ever unsure, don’t undercook.
