What is a common garnish on top of crab and lobster mac and cheese?

A common garnish for crab and lobster mac and cheese is often a combination of Parmesan cheese and diced tomatoes. This choice enhances the dish by adding a layer of richness and depth of flavor from the Parmesan, which complements the creaminess of the mac and cheese. The diced tomatoes provide a fresh contrast that balances the richness of the seafood and cheese, bringing a pop of color and flavor to the dish.

While other options such as chopped parsley or fresh cilantro could potentially be used in different contexts, they do not specifically complement the traditional flavors found in crab and lobster mac and cheese as effectively as the combination of Parmesan and diced tomatoes does. Sliced jalapeños, while adding heat, may not align with the classic taste profile expected in such a seafood dish, making the cheese and tomato topping the more appropriate choice for enhancing its overall appeal.