Spaghettini verdi is a traditional pasta dish originating from Tuscany. It's made with a combination of extra-thin spaghettini pasta, butter, garlic, parsley, salt, pepper, and grated Parmigiano-Reggiano cheese. The spaghettini are cooked in salted water, drained, then returned to the pot with the butter, garlic, grated cheese, and parsley.

The dish is seasoned with salt and pepper, tossed, and immediately served on heated plates. If prepared properly, the pasta should be coated in a creamy green sauce.