Healthy Low Fat Tuna Salad Recipe: Lemon-Dill Freshness With No Mayo

I’ve perfected a low-fat tuna salad that’s fresh, bright, and far from boring. By skipping the mayo and using lemon and dill, the flavors stay clean and satisfying.

This version keeps the protein high and the calories low while delivering restaurant-quality taste. It’s quick, wholesome, and ideal for meal prep or a light lunch.

Ingredients for Healthy Low Fat Tuna Salad

Bright, clean ingredients for a protein-packed salad you’ll actually crave.

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Tuna quality matters here. Wild-caught in water (not oil) keeps it light and fresh—Safe Catch or Wild Planet are my go-tos. The celery and cucumber add that satisfying crunch, so pick firm stalks and unblemished cucumbers. For the dill, fresh bunches from the produce section beat dried every time (the smell should knock you over when you open the bag).

No Greek yogurt? Low-fat cottage cheese blended smooth works in a pinch. Out of fresh dill? Dried dill at one-third the amount is fine, but add it early so it rehydrates. The lemon can be bottled (I won’t tell), but fresh zest really wakes everything up. Trader Joe’s has great pre-chopped celery if you’re short on time.

This keeps 3-4 days in the fridge—actually tastes better after a night as the flavors meld. Store in an airtight container, but don’t dress it until ready to eat (keeps the celery crisp). Perfect for meal prep—portion into containers for grab-and-go lunches all week.

Step-by-Step Instructions for Lemon-Dill Tuna Salad

Here’s how I make this light and fresh version that’s packed with flavor but skips the mayo.

Step 1: Drain and Flake the Tuna

Open the 2 cans Canned Tuna in Water and drain them thoroughly in a colander. I press down gently with a fork to remove any excess liquid—this prevents your salad from becoming watery.

Transfer the tuna to a large mixing bowl and flake it with a fork until it’s in small, even pieces. You want it broken up but not mushy. This creates the perfect texture for the salad to hold together without being paste-like.

Step 2: Prepare the Vegetables and Herbs

Finely dice the 1 cup Celery, 0.25 cup Red Onion, and 0.5 cup Cucumber. The smaller the pieces, the better they’ll distribute throughout the salad. I like to keep the celery and cucumber separate until the end to maintain their crispness.

Chop the 0.25 cup Fresh Dill (after removing the stems) and zest the 1 whole Lemon before juicing it. The zest adds a bright pop of citrus flavor that pairs perfectly with the dill. Set the juiced lemon halves aside for now.

Step 3: Make the Light Dressing

In a small bowl, whisk together the 3 tbsp Extra-Virgin Olive Oil, 1 tbsp Dijon Mustard, juice from the 1 whole Lemon, 0.25 cup Plain Non-Fat Greek Yogurt, 0.5 tsp Salt, and 0.5 tsp Black Pepper.

Whisk vigorously until the mixture is smooth and slightly thickened. The Greek yogurt replaces traditional mayo, giving you that creamy texture without the added fat. Taste and adjust the seasoning if needed—sometimes I add a pinch more salt or a squeeze more lemon for balance.

Step 4: Combine Everything and Chill

Add the diced celery, red onion, cucumber, and chopped dill to the bowl with the flaked tuna. Pour the dressing over everything and fold gently with a spatula until all the ingredients are evenly coated.

Let the salad sit for 10-15 minutes in the refrigerator before serving. This resting time allows the flavors to meld together beautifully. The dill and lemon will shine through, and the vegetables will soften just slightly while staying crisp.

Step 5: Serve Over Fresh Romaine

Chop the 1 whole Romaine Lettuce into bite-sized pieces and arrange it on plates or in a large serving bowl. The crisp romaine provides the perfect bed for the tuna salad, adding a refreshing crunch.

Spoon the tuna salad over the lettuce and serve immediately. This dish is best enjoyed fresh, but it will keep in the refrigerator for up to 2 days if stored in an airtight container. The flavors deepen over time, though the texture is best right after making it.

Creative Variations of This Recipe

Mediterranean Style

Swap the dill for ¼ cup chopped fresh parsley and add ½ cup diced Kalamata olives plus 2 tbsp capers. The briny olives and capers bring that authentic Mediterranean flair. I love this with a sprinkle of feta cheese on top. 🌿

Spicy Southwest

Add ½ cup black beans, ½ cup corn kernels, and 1 diced jalapeño for heat. Replace the dill with ¼ cup chopped cilantro and use lime juice instead of lemon. This version is perfect in whole wheat wraps.

Apple Walnut Crunch

Fold in 1 diced apple and ¼ cup chopped walnuts for sweet crunch. Add 1 tsp cinnamon to the dressing for warmth. I use Honeycrisp apples for the best texture and sweetness.

Avocado Lime

Mix in 1 diced avocado just before serving and replace the olive oil with avocado oil. Add 1 tbsp lime zest to the dressing for extra zing. This version needs to be eaten immediately to prevent browning. 💛

Classic Diner Style

Use 1 tbsp sweet pickle relish instead of cucumber and add 1 hard-boiled egg, chopped. This brings back that nostalgic diner flavor while still keeping it light. Serve on whole grain toast.

Asian-Inspired

Replace the dill with 2 tbsp chopped fresh mint and add 1 tbsp grated ginger to the dressing. Use rice vinegar instead of lemon juice and top with crushed peanuts for crunch.

Frequently Asked Questions