Pasta toppings often include sauces, which can range from creamy alfredo to a simple marinara. Common sauces used as pasta toppings include pesto, carbonara, and bolognese. Other popular toppings include vegetables, such as mushrooms, spinach, and tomatoes, as well as meats like chicken, sausage, and bacon. Cheese is also a popular topping, with Parmesan, mozzarella, and ricotta being some of the most popular choices. Finally, herbs and spices, such as oregano, basil, and garlic, are often used to add flavor to pasta dishes.