Cannelloni is a big, smooth, tube-shaped pasta that's stuffed with meat or cheese and baked in a sauce.
Cannelloni is similar to manicotti: Each dish consists of tubular noodles large enough to stuff with cheese (usually ricotta), minced meat, and/or vegetables, especially spinach. Then, the stuffed pasta is covered with a sauce, sprinkled with cheese, and baked. In the U.S., these pasta dishes are nearly identical aside from the ridges that often distinguish manicotti pasta. Also, cannelloni is sometimes made by rolling fresh pasta sheets around a filling, especially traditional Italian versions. In Italian, cannelloni means "large reeds" or "big pipes."