Mash Tuna: Drain the canned tuna and place it in a mixing bowl. Break it into small flakes with a fork until desired consistency is achieved—smooth with some chunks.

Mix Ingredients: Add chopped celery, green onion, and pepperoncini to the tuna. Pour in a splash of pepperoncini juice and mayonnaise. Sprinkle in salt and black pepper. Stir gently until well combined.

Adjust Seasoning: Taste and adjust seasoning as necessary. Add more pepperoncini juice or mayonnaise if needed. Let it rest for a minute if desired.

Serve and Enjoy: Transfer the tuna salad to a dish or individual plates. Serve with whole wheat crackers, or enjoy in sandwiches or lettuce wraps.