What is itilian dish with seafood and tomato sauce over pasta?

You're likely thinking of "Spaghetti alle Vongole" or "Spaghetti with Clams".

Here's what makes it so iconic:

* Fresh Seafood: The dish features clams, often with a touch of white wine, garlic, and parsley.

* Simple Tomato Sauce: It's usually a light and bright tomato sauce, not a heavy, meat-based ragu.

* Pasta: Spaghetti is the most common pasta shape, but linguine or other long, thin pasta can be used.

Other possibilities:

* "Spaghetti con le Cozze" (Spaghetti with Mussels): Similar to the clam version, but featuring mussels.

* "Spaghetti allo Scoglio" (Spaghetti with Seafood): This dish features a variety of seafood, including clams, mussels, shrimp, and sometimes even fish.

Let me know if you'd like more information about any of these dishes!