Welcome to your new favorite quick and easy low-carb lunch: a delicious Keto Tuna Salad! This recipe takes the beloved classic, with its creamy texture and lightly tangy flavor, and perfectly adapts it for a ketogenic lifestyle. Say goodbye to carb-heavy bread and embrace fresh, vibrant ways to enjoy this protein-packed meal. Whether you serve it in crisp lettuce cups, over a bed of mixed greens, tucked into a keto bread sandwich, or simply enjoy it by the spoonful, this versatile dish is designed to satisfy. Best of all, it boasts an incredible 0g net carbs per serving, making it an ideal choice for anyone committed to a low-carb diet seeking convenience without compromising on taste or health.

Why You’ll Love This Keto Tuna Salad Recipe
This keto tuna salad isn’t just another recipe; it’s a game-changer for anyone on a low-carb journey. Here’s why it deserves a permanent spot in your meal rotation:
- Effortlessly Low Carb: With a mere 0g net carbs per serving, this tuna salad fits perfectly into strict ketogenic guidelines, helping you maintain ketosis without sacrifice.
- Quick & Simple: Ready in under 10 minutes, it’s the ultimate solution for busy weekdays when you need a nutritious meal fast. No cooking required, just mix and enjoy!
- Incredibly Versatile: Enjoy it in countless ways – as a dip, a filling, a topping, or simply on its own. It’s the perfect canvas for your favorite keto-friendly additions.
- Economical & Accessible: Canned tuna is a pantry staple that’s budget-friendly and always available, making this a smart choice for delicious, affordable meals.
- Rich in Protein & Healthy Fats: Packed with quality protein from tuna and healthy fats from keto-friendly mayonnaise, it keeps you feeling full and satisfied, curbing cravings and supporting your energy levels.
- Meal Prep Friendly: Prepare a larger batch at the beginning of the week, and you’ll have healthy lunches ready to go for days, saving you time and effort.
- Classic Comfort with a Healthy Twist: It delivers all the familiar, comforting flavors of traditional tuna salad but optimized for your low-carb lifestyle, proving that healthy eating can be truly delicious.
Key Ingredients That Make This Recipe So Good
Each ingredient in this keto tuna salad plays a crucial role in delivering its signature creamy texture and balanced flavor profile. Here’s a closer look at what makes this recipe exceptional:
- Canned Tuna: The star of our show! Canned tuna is an absolutely delicious and incredibly versatile pantry staple. It’s not only economical but also packed with lean protein and omega-3 fatty acids, making it a healthy base for any meal. For the best flavor and texture, we recommend tuna packed in water and thoroughly drained to prevent a watery salad. Solid white albacore or chunk light tuna are both excellent choices.
- Mayonnaise: Mayo is essential for creating that wonderfully creamy and rich texture we all love in tuna salad. However, choosing the right mayonnaise is critical for a keto diet. Traditional brands often contain sugar or unhealthy oils. Look for mayonnaise made with avocado oil or olive oil, and always check the label to ensure it’s free from added sugars and high-carb vegetable oils. This ensures your salad remains deliciously keto-compliant and supports healthy fat intake.
- Celery: A classic addition, celery contributes a vital element of crunch and a subtle, refreshing saltiness that complements the creamy tuna beautifully. Finely chopping the celery ensures an even distribution of flavor and texture throughout the salad. It’s a simple ingredient that makes a big difference.
- Dill Relish: This ingredient adds another fantastic layer of complexity to the tuna salad. Dill relish provides a delightful balance of tartness and a hint of sweetness, along with an amazing, bright crunch. Unlike sweet relish, dill relish is typically low in sugar, making it ideal for a keto diet. Its pungent flavor cuts through the richness of the mayo, creating a perfectly balanced bite.
- Lemon Juice: Just a splash of fresh lemon juice is all it takes to elevate the flavors of this salad. The acidity from the lemon brightens the entire dish, enhancing the notes of celery and pickles, and adding a fresh, zesty finish that prevents the salad from tasting heavy. Freshly squeezed lemon juice is always preferred over bottled for the best taste.
- Garlic: You might not typically consider adding minced garlic to your tuna salad, but trust us on this one – it’s a game-changer! A single clove of finely minced garlic infuses the salad with a savory depth and aromatic kick that you won’t want to go without once you’ve tried it. It adds a gourmet touch to this simple dish.
- Salt and Black Pepper: These fundamental seasonings are crucial for bringing all the flavors together. Always season to taste, adding enough salt to enhance the natural flavors of the tuna and vegetables, and freshly ground black pepper for a subtle warmth and aroma.
How To Prepare This Simple Keto Tuna Salad
Making this keto tuna salad couldn’t be easier. It’s a truly minimalist recipe that delivers maximum flavor with minimal effort.
Simply mix all the ingredients together in a medium to large mixing bowl until well combined.
Ensure that the tuna is thoroughly drained before adding it to the bowl. Once everything is mixed, you’re ready to serve!

Expert Tips for the Perfect Keto Tuna Salad
Elevate your keto tuna salad with these handy tips and ensure every batch is as delicious and keto-friendly as possible.
- Optimal Storage for Meal Prep: Your homemade keto tuna salad is perfect for meal prepping! Store it in an airtight container in the refrigerator for 3 to 5 days. This makes it an ideal grab-and-go lunch option for almost an entire week, allowing you to stay on track with your low-carb goals effortlessly.
- Choosing the Right Mayonnaise for Keto: This is a critical step. When on a ketogenic diet, it is essential to avoid mayonnaises labeled as “light,” “fat-free,” “reduced-fat,” or “sweetened.” These varieties are typically lower in fat and significantly higher in carbs due to added sugars and starches, making them unsuitable for keto. Instead, opt for full-fat mayonnaise made with healthy oils such as avocado oil or olive oil. Always double-check the ingredient list to ensure there are no hidden sugars or undesirable vegetable oils. Some olive oil mayos can have a strong flavor, so test a small amount first to ensure it doesn’t impart an “off” taste to your tuna salad.
- Chill for Enhanced Flavor: While this tuna salad is delicious immediately after mixing, allowing it to chill in the refrigerator for at least 30 minutes (or even longer, up to a few hours) allows the flavors to meld beautifully. The ingredients will marry together, resulting in a more cohesive and tastier salad.
- Adjust Texture to Your Liking: If you prefer a looser, creamier tuna salad, feel free to add a little more mayonnaise, one tablespoon at a time, until you reach your desired consistency. Conversely, if you prefer a thicker salad, ensure your tuna is very well drained.
- Fresh Ingredients Matter: Using fresh lemon juice and finely minced fresh garlic will make a noticeable difference in the overall flavor profile of your tuna salad. While powdered alternatives can work in a pinch, fresh is always best for brightness and pungency.

Serving Suggestions Beyond Lettuce Cups
While lettuce cups are a fantastic low-carb vehicle for this tuna salad, the possibilities don’t stop there. Get creative with these delicious keto-friendly serving ideas:
- Cucumber Slices or Bell Pepper Scoops: Crisp cucumber slices or colorful bell pepper strips make excellent dippers.
- Avocado Halves: Spoon the tuna salad into a halved avocado for a nutrient-dense meal packed with healthy fats.
- Celery Sticks: For an extra crunch, use celery sticks as a scoop.
- Keto Wraps or Tortillas: Roll the tuna salad into your favorite low-carb tortillas or leafy greens like collard greens or chard for a quick wrap.
- On Its Own: Sometimes, the simplest way is the best. Enjoy a bowl of this creamy tuna salad just as it is.
- With Flax Crackers: Pair it with crunchy keto-friendly flaxseed crackers for a satisfying snack.
- Stuffed Tomatoes: Hollow out a ripe tomato and fill it with tuna salad for a refreshing and beautiful presentation.
Customize Your Keto Tuna Salad: Delicious Add-ins
One of the best things about tuna salad is how easily it can be customized. Feel free to experiment with these keto-friendly additions to match your personal taste:
- Hard-Boiled Eggs: Chopped hard-boiled eggs add extra protein and a delightful texture.
- Red Onion or Scallions: For a sharper, more pungent flavor, finely diced red onion or sliced scallions work wonders.
- Fresh Herbs: Dill, parsley, chives, or even a touch of tarragon can add a fresh, aromatic lift.
- Olives: Sliced black or green olives introduce a briny, salty punch.
- Avocado: Diced avocado adds an extra layer of creaminess and healthy fats, though it may reduce the storage time slightly.
- Mustard: A teaspoon of Dijon mustard or spicy brown mustard can add a tangy kick.
- Spices: A pinch of smoked paprika or a dash of cayenne pepper can introduce warmth and depth.
- Hot Sauce: For those who like a little heat, a few drops of your favorite keto-friendly hot sauce can be a great addition.
Frequently Asked Questions About Keto Tuna Salad
Got questions about making the perfect keto tuna salad? We’ve got answers!
- Can I use tuna packed in oil for this recipe?
- Yes, you can, but we recommend tuna packed in water and thoroughly drained for the best results. Tuna in oil can make the salad too oily and change the texture. If using tuna in oil, make sure it’s packed in a keto-friendly oil like olive oil and drain it very well.
- Is sweet relish allowed on a keto diet?
- Generally, no. Sweet relish contains added sugar, which is not keto-friendly. Always opt for dill relish, which is naturally low in carbs and sugar, to keep your tuna salad keto-compliant.
- How long does keto tuna salad last in the fridge?
- When stored in an airtight container in the refrigerator, this keto tuna salad will stay fresh and delicious for 3 to 5 days. It makes fantastic leftovers for quick lunches!
- Can I freeze tuna salad?
- Freezing tuna salad with mayonnaise is generally not recommended. The mayonnaise tends to separate and change texture upon thawing, resulting in a watery and unappealing consistency. It’s best enjoyed fresh or after refrigeration.
- What else can I add to my keto tuna salad for more flavor?
- Beyond the core ingredients, feel free to add finely diced red onion, chopped hard-boiled eggs, fresh herbs like dill or parsley, sliced black olives, or even a dash of hot sauce for a spicy kick. See our “Customize Your Keto Tuna Salad” section for more ideas!
- What are the net carbs in this recipe?
- This keto tuna salad is designed to be incredibly low-carb, yielding 0g net carbs per serving as prepared with the specified ingredients. Always double-check labels for any brands you use to ensure carb counts remain minimal.
More Delicious Keto Recipes & Posts
- Keto Egg Salad
- Keto French Toast
- 7-Day Keto Meal Plan
- Everything Bagel Chicken with Scallion Cream Cheese Sauce
- Air Fryer Zucchini Chips
Recipe By: Cheryl Malik
Rating: 4.60 out of 5 stars from 10 votes
Keto Tuna Salad
Prep Time: 5 minutes
Total Time: 5 minutes
This keto tuna salad is a low carb take on classic, creamy, lightly tangy tuna salad that’s perfect for lunch. Served in lettuce cups, over greens, on keto bread, or by itself, you’ll love this quick and easy lunch option when you’re low carb! 0g net carbs

Cheryl Malik
Servings: 4
Ingredients
- 2 5-ounce cans tuna packed in water, drained
- ½ cup mayonnaise or less, to taste
- ¼ cup celery finely chopped, about 1 rib
- ½ tablespoon dill relish
- ½ tablespoon lemon juice fresh
- 1 clove garlic minced
- salt
- black pepper freshly ground
Instructions
-
Mix all of the ingredients together in a bowl until well combined.
- Storage: Keep in fridge in an airtight container for 3-5 days.
- Mayo: Do not use low fat, reduced fat, or light mayo if on keto. Opt for full-fat mayonnaise made with avocado or olive oil.
Approximate Information for One Serving
Serving Size: 1 serving
Calories: 256 cal
Protein: 14 g
Fat: 22 g
Saturated Fat: 3 g
Trans Fat: 1 g
Cholesterol: 37 mg
Sodium: 379 mg
Potassium: 155 mg
Total Carbs: 1 g
Fiber: 1 g
Sugar: 1 g
Net Carbs: 0 g
Vitamin A: 90 IU
Vitamin C: 1 mg
Calcium: 18 mg
Iron: 1 mg
Nutrition Disclaimers
Number of total servings shown is approximate. Actual number of servings will depend on your preferred portion sizes.
Nutritional values shown are general guidelines and reflect information for 1 serving using the ingredients listed, not including any optional ingredients. Actual macros may vary slightly depending on specific brands and types of ingredients used.
To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by the desired number of servings. Result will be the weight of one serving.
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