Step 1

Drain the canned tuna thoroughly and place it in a large mixing bowl.

Step 2

Finely chop the celery and red onion.

Step 3

Add the mayonnaise and Dijon mustard to the tuna.

Step 4

Mix well until the tuna is evenly coated.

Step 5

Add the chopped celery and red onion to the tuna mixture.

Step 6

Stir to combine.

Step 7

Add the pickles or relish and lemon juice to the mixture.

Step 8

Season with salt and black pepper to taste.

Step 9

Mix all ingredients thoroughly until well combined.

Step 10

Taste and adjust seasoning if necessary.

Step 11

Serve the tuna salad on a bed of lettuce, in a sandwich, or with crackers.