Add-ins: Chopped pickles, jalapenos, capers, or olives can be added to the filling for a unique twist on the base recipe.
Serve: Serve the filling in a sandwich, in lettuce cups for a low-carb option, or on crackers as an appetizer.
Store: Store the tuna filling separately in an air-tight container, refrigerated, for up to 5 days and assemble sandwiches just before serving if you are making the sandwiches ahead of time.