Trenette al Pesto (pasta with potatoes, green beans and pesto) is a dish that originated in Liguria, Italy, and also know as the pasta served in the animated Pixar film Luca. Pesto is also from Liguria, so you can imagine that this pasta really lets the pesto shine. Trenette pasta is long and flat, similar to linguine, but slightly wider. Combined with tender potatoes, crisp green beans, and lots of fresh homemade pesto, this is classic Italian comfort food at its best, packed with flavor and texture. You can also make the dish without the potatoes.