Tuna salad can be stored in the refrigerator in an airtight container for up to 3 days. This makes it a great option for meal prep or quick lunches throughout the week. Just give it a quick stir before serving, as it may separate slightly as it sits.
For a dairy-free alternative, you can swap out the Greek yogurt or mayonnaise and use mashed avocado instead. The avocado adds a creamy texture and mild flavor while keeping the salad rich and satisfying. It's a great option if you're avoiding dairy or simply love the taste of avocado.