Ingredients
Equipment
Method
- Combine tuna, Greek yogurt, celery, red onion, and mustard in a mixing bowl until creamy.
- Season the tuna mixture lightly with sea salt and black pepper for balanced flavor.
- Arrange lettuce leaves on a serving tray, shaping them gently into cup forms.
- Spoon tuna salad evenly into each lettuce cup without overfilling the delicate leaves.
- Serve immediately for crisp texture, or chill briefly before packing for later snacking.
Notes
Serve immediately for crisp lettuce texture or chill slightly for firmer tuna filling. Avoid freezing assembled cups because lettuce softens after thawing. Freeze tuna mixture separately if preparing ahead. Handle lettuce carefully during filling to prevent tearing. Customize flavors with pickles, avocado, dill, or spicy sauce. Store refrigerated for two days.