Cook the salmon if needed. Poach, bake, or pan-sear until just cooked through and flaky.
Let it cool to room temperature so it doesn’t melt the dressing.
Prep the aromatics. Finely chop dill, dice celery, and mince red onion. Small pieces mean better texture and more even flavor in every bite.
Make the dressing. In a bowl, whisk yogurt or mayonnaise with Dijon, lemon zest, lemon juice, olive oil (if using), a pinch of salt, and black pepper. Taste and adjust acidity or creaminess.
Fold in the salmon. Add the flaked salmon to the dressing and gently fold with a spatula.
Keep some larger flakes for a pleasing texture.
Add crunch and brightness. Stir in celery, onion, dill, and capers (if using). Mix just until combined. Taste for salt, pepper, and lemon.
Chill briefly. Let the salad rest in the fridge for 15–30 minutes.
This helps the flavors settle and the dill bloom.
Serve your way. Spoon over greens, pile onto toast, or tuck into lettuce cups. Add extra dill or a squeeze of lemon on top for a fresh finish.