Prep the tuna: Drain the cans thoroughly, then flake the tuna with a fork in a mixing bowl to break up large pieces.
Mix the base: Add cottage cheese to the tuna. If using, fold in Greek yogurt or mayonnaise until the texture looks creamy but not soupy.
Add crunch and flavor: Stir in celery, red onion, and pickles.
Sprinkle in fresh herbs.
Season it: Add Dijon mustard, lemon juice, salt, and pepper. Mix gently until everything is well combined.
Taste and adjust: Add more lemon for brightness, more mustard for zip, or a pinch of salt if it needs it. If it’s too thick, a splash of pickle juice or olive oil loosens it up.
Chill briefly: Let the salad rest in the fridge for 15–30 minutes to allow flavors to meld.
Not required, but worth it.
Serve: Spoon onto toasted sourdough, wrap in a whole-wheat tortilla with lettuce, or mound over mixed greens. Crackers, cucumber rounds, or stuffed tomatoes also work well.