Classic Tuna Salad Recipe with Mayo and Crunchy Celery

Classic Tuna Salad Recipe

I eat tuna salad often — it’s one of those simple, dependable meals that can be either loved or disliked, but for me it’s comfort food. I grew up on it, so sharing my version of a Classic Tuna Salad felt essential. This recipe is straightforward, bright, and reliably delicious. It’s perfect for prepping on a Sunday and enjoying all week.

Classic Tuna Salad on bed of lettuce with crackers

This tuna salad is dill-forward, zesty from lemon and mustard, and has a faint touch of sweetness from coconut sugar — an unusual but tasty addition that helps round out the flavors without overpowering them. The recipe is easy to tweak: add more dill for herbal brightness, swap mayo styles, or increase the cayenne for heat. Below are the ingredients, step-by-step instructions, storage guidance, FAQs, and a few serving ideas to get the most out of this classic dish.

Classic Tuna Salad in lettuce cups

Ingredients

  • 2 [4-ounce] cans of tuna, drained
  • 1/2 cup finely diced celery (about 1 stalk)
  • 1/4 cup finely diced red onion (about 1/4 of a medium onion)
  • 2 cloves garlic, minced
  • 2 tablespoons fresh dill, finely chopped
  • 2 tablespoons mayo (store-bought or homemade)
  • 1 teaspoon Dijon mustard
  • 1 tablespoon dill relish
  • 1 tablespoon lemon juice (about 1/2 lemon)
  • 1 teaspoon coconut sugar
  • Kosher salt, to taste
  • Black pepper, to taste
  • A dash of cayenne pepper (optional)
Classic Tuna Salad ingredients scattered around

Step-by-Step Instructions

Step One: Add ingredients to a large bowl

Combine the drained tuna, diced celery, red onion, minced garlic, and chopped dill in a spacious mixing bowl. Add the mayo, Dijon mustard, dill relish, lemon juice, and coconut sugar on top.

Classic Tuna Salad ingredients in large bowl not combined

Step Two: Combine and season

Using a fork, stir and gently mash the mixture until the tuna is well broken up and everything is evenly coated. Taste and season with kosher salt, black pepper, and a light dash of cayenne if you want some heat. Refrigerate until you’re ready to serve; chilling helps the flavors meld.

Classic Tuna Salad combined in large bowl

Step Three: Serve as desired

This tuna salad is versatile: eat it with crackers, spoon it into butter lettuce cups for a low-carb option, or serve with fresh-cut vegetables. It also makes a great sandwich filling if you prefer bread. For a lighter meal, pair it with a crisp green salad and a squeeze of lemon.

Classic Tuna Salad in lettuce cups

Tips, Variations, and Serving Ideas

  • Make it your own: swap dill for parsley or chives, use sweet relish instead of dill relish, or add capers for a briny kick.
  • Texture: mash more for a smoother spread or leave some larger chunks of tuna for a heartier bite.
  • Heat: a small pinch of cayenne or a few drops of hot sauce will add warmth without overwhelming the flavor.
  • Mayo alternatives: Greek yogurt or mashed avocado can replace mayo for a lighter or dairy-free version.
  • Serving options: on crackers, in lettuce cups, stuffed into ripe tomatoes, on toasted bread, or scooped onto cucumber rounds for appetizers.

Storage

Store the tuna salad in an airtight container in the refrigerator. It keeps well for 3 to 5 days. Stir before serving and discard if it develops an off smell or color. If you plan to store it for more than a couple of days, consider leaving out the celery or onion until right before serving to maintain crunch.

FAQ

How long does this keep in the fridge?

About 3–5 days in an airtight container. Make sure to keep it chilled and use your best judgment—if it smells off, discard it.

Why is there coconut sugar in the recipe?

Just a teaspoon of coconut sugar balances the acidity from the lemon and the tang from mustard and relish. It adds a subtle sweetness without making the salad noticeably sweet, and it keeps the recipe friendly for Paleo-style diets.

Classic Tuna Salad in lettuce cups small image

Recipe at a Glance

  • Prep time: about 15 minutes
  • Servings: about 2 (adjust quantities to suit)

This Classic Tuna Salad is one of my favorite quick lunches—light, flavorful, and easy to adapt. Make a big batch on a Sunday and enjoy it with crackers, fresh veggies, or wrapped in lettuce for a busy week of simple, tasty meals.