Heat a large pot of water over high heat to boiling and add 1 tablespoon salt.
Cook the linguine according to the package directions to al dente.
While the pasta cooks, heat a large skillet over medium heat and add the olive oil and butter.
Sautee the shallots, garlic, chili flakes, basil and oregano until the shallots are soft.
Add the raw shrimp and cook until almost completely pink. Add the pre-cooked seafood mix and toss everything together for about 1 minute. If the seafood mix is not pre-cooked, simply add it with the shrimp and cook together.
Remove all the seafood from the pan to a bowl and set aside.
Add the white wine and lemon juice to the pan and reduce over medium heat for about 4 minutes.
Add the tomato passata (tomato puree) to the pan and stir. Add the pasta and toss the pasta and sauce together.
Add about ½ cup of the pasta water and toss (Add more pasta water if the sauce appears dry. This will depend on the consistency of the tomato puree used). Add the cream and toss again. Add the seafood and toss again.
Garnish with some finely chopped basil and serve.