1: Elevate your tuna salad with the perfect blend of mayo and Dijon mustard.

2: Add a crunch to your sandwich with diced celery and red onion.

3: Amp up the flavor with fresh lemon juice and a pinch of salt and pepper.

4: Upgrade your bread choice to a hearty whole grain or sourdough.

5: Experiment with different add-ins like chopped pickles or capers.

6: Don't forget the lettuce and tomato for added freshness.

7: Make ahead for an easy grab-and-go lunch option.

8: Serve on toasted bread for a delicious twist.

9: Enjoy a satisfying and flavorful tuna salad sandwich every time!