De Cecco Conchiglioni Rigati is large shell pasta with ridges on the outside. The ridges on De Cecco Conchiglioni Rigati make the pasta excellent at gripping Italian sauces and ragus. One of the best ways to cook Conchiglioni Rigati pasta is to stuff the shells with ricotta cheese and make a baked pasta dish. If you plan on making a big baked pasta dinner for your family, get the 6 Pack!