Leftovers can be stored in an airtight container in the fridge for up to 5 days. Stir before serving to redistribute any liquid., Best eaten within 3 days to maintain crunchiness in celery and pickles., Not freezer-friendly as cottage cheese texture changes upon freezing., Can prep in advance by pureeing cottage cheese mixture separately and adding tuna and veggies before serving., Serving suggestions include on crackers, in sandwiches or wraps, or over leafy greens., Variations include swapping tuna for canned or cooked chicken, using Greek yogurt instead of cottage cheese, adding Dijon mustard or spicy elements like Sriracha or red pepper flakes, and adding extra veggies such as cucumber, bell pepper, or olives.