Classic deviled eggs meet tuna salad in these protein-packed bite-sized snacks. Hard-boiled egg whites are filled with a creamy blend of egg yolks, albacore tuna, light mayo, red onion, and red wine vinegar, then finished with fresh chives. They take about 20 minutes to make, store well for 4 days, and work equally well as a meal-prep lunch or a crowd-pleasing appetizer.