Heat 3 tablespoons olive oil in a large skillet over medium heat; cook and stir sea scallops, shrimp, and calamari rings in the hot oil until scallops and calamari are opaque and shrimp are pink, about 5 minutes.
Bring a separate pot of water to a boil and add mussels and littleneck clams to the boiling water; cook until shells have opened, about 3 minutes. Remove shellfish and rinse with hot water.
Pour crushed tomatoes, water, 2 cans chopped clams, 1/4 cup olive oil, onion, red pepper flakes, garlic, oregano, parsley, and salt into a large pot and bring to a boil. Stir cooked scallops, shrimp, calamari, mussels in shells, and littleneck clams in shells into tomato mixture. Reduce heat to low and simmer for 1 hour.
About 10 minutes before serving, bring a large pot of lightly salted water to a boil; cook the linguine at a boil until tender yet firm to the bite, about 10 minutes; drain and rinse pasta in hot water to prevent sticking. Serve seafood and sauce over pasta.
Nutritional Facts
Per 10 servings
Calories: 775
Carbohydrate: 81g
Fat: 17g
Fiber: 7g
Protein: 72g
Sugar: 1g
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