What is a common addition to Carrabba's pasta dishes for flavor enhancement?

Olive oil is a common addition to Carrabba's pasta dishes for flavor enhancement because it complements the ingredients in the dishes beautifully. Olive oil adds richness and a silky texture, allowing flavors to blend seamlessly. It also carries the taste of herbs and spices, elevating the overall profile of the dish. Many traditional Italian dishes utilize olive oil not only as a cooking fat but also as a finishing touch to enhance the appearance and flavor of pasta.

In contrast, while butter is sometimes used in various cuisines, it is less prevalent in Carrabba's typical pasta offerings. Sour cream doesn't typically align with the flavor profiles of Italian cuisine, and barbecue sauce would not blend harmoniously with the standard flavors and sauces found on Carrabba’s menu. Therefore, olive oil stands out as the most suitable and traditional choice for enhancing the flavors of their pasta dishes.