Which of the following is NOT typically an ingredient in Pasta Primavera?

Pasta Primavera is traditionally a pasta dish that features a variety of fresh vegetables, which is where it gets its name—"Primavera" means spring in Italian, indicating the use of seasonal, fresh produce. The key ingredients in this dish typically include a combination of vegetables like zucchini and carrots, which are staples in many versions.

Cheese, while it might be used in some variations or as a garnish, is not considered a standard ingredient in the classic preparation of Pasta Primavera. This dish is focused on the vegetables and often dressed with olive oil or a light sauce, allowing the flavors of the vegetables to shine through without the heaviness of cheese. Therefore, cheese does not fit into the core identity of Pasta Primavera, making it the correct choice for the ingredient that is NOT typically included.