Ingredients
- ¼ small red onion, finely chopped
- 1 celery stalk, finely chopped
- 6 Tbsp. mayonnaise
- 2 Tbsp. coarsely chopped parsley or cilantro
- 2 Tbsp. drained capers, finely chopped
- 2 tsp. fresh lemon juice
- 1 tsp. Dijon mustard
- 1 tsp. hot sauce (optional)
- Kosher salt, freshly ground pepper
- 1 5-oz. can tuna, preferably oil-packed and salted, drained
- Bread or salad greens (for serving)
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