A sauce made from sieved tomatoes?

A sauce made from sieved tomatoes is most commonly called tomato sauce. Here's why:

* Sieving removes seeds and skins: This creates a smoother, more consistent texture.

* It's a base for many other sauces: You can then add herbs, spices, garlic, onions, and other ingredients to create more specific flavors.

Other possible names for a sauce made from sieved tomatoes:

* Passata: This is the Italian term for strained tomatoes, often used in sauces.

* Tomato purée: This term implies a thicker consistency, often achieved by reducing the sauce.

* Tomato concentrate: This is a very reduced form of tomato sauce with a very intense flavor.

Ultimately, the name you use depends on the specific recipe and the desired consistency.