Keto Tuna Salad Creamy, tangy, and ready in minutes, this keto tuna salad is a low-carb, high-protein recipe made with canned albacore tuna, keto-friendly mayonnaise, crunchy celery, red onion, and herbs. Serve it on keto bread, in lettuce cups, wrapped in low-carb tortillas, or spooned over fresh greens for a quick lunch or meal-prep dinner. Key Takeaways Keto tuna salad is a low-carb, high-protein meal that fits a ketogenic eating pattern. One serving provides about 20–25g of protein , depending on the tuna brand and serving size. Traditional keto plans typically keep carbs in the 20–50g net carb range per day , so this recipe works well when paired with lettuce cups, cucumber slices, or keto bread. Chicken of the Sea Albacore Tuna in Water is a strong keto base because it is naturally carb-free, fully cooked, and pantry-friendly. You can serve this recipe 5+ ways : on keto bread, in wraps, in lettuce cups, over salad greens, or with cucumber rounds. Total Time 6 minutes Servings 3 servings Ingredients 2 (5 oz) cans albacore tuna in water 1/4 cup keto mayonnaise 3-6 slices of keto bread 2 tbsp red onion (minced) 2 tbsp celery (minced) 1/4 tbsp whole-grain or Dijon mustard 1 tsp minced parsley Freshly squeezed lemon juice (optional) Salt and pepper, to taste For Serving 3 to 6 slices keto bread Keto wraps Lettuce cups Cucumber slices Salad greens Ingredient Notes Keto mayonnaise: Look for a mayonnaise with no added sugar and minimal carbs. Red onion: Soaking the minced onion in cold water helps mellow the sharp bite. Mustard: Dijon adds a clean tang, while whole-grain mustard adds texture. Parsley: Fresh parsley brings color and a light herbal finish. How to Make Keto Tuna Salad This tuna salad comes together in one bowl with no cooking required. Step-by-Step Instructions Place the minced red onion in a small bowl of cold water and soak for 5 minutes. Drain the onion and pat it dry with paper towels. Drain the tuna and transfer it to a medium mixing bowl. Use a fork to break the tuna into smaller flakes. Add the keto mayonnaise, celery, mustard, and parsley. Stir until everything is evenly combined. Add lemon juice, salt, and pepper to taste. Serve immediately on keto bread, in a wrap, in lettuce cups, or over salad greens. Why Soak the Onion? Soaking red onion in cold water softens its sharp flavor while keeping the crunch. It helps the tuna salad taste fresher and more balanced. Best Ways to Serve Keto Tuna Salad This recipe is flexible enough for lunch, dinner, snacks, and meal prep. Try It On: Keto bread for a classic sandwich Lettuce cups for a crisp, fresh wrap Keto tortillas for an easy handheld lunch Cucumber slices for a light, refreshing bite Salad greens for a quick tuna salad bowl Avocado halves for extra richness and healthy fats Celery sticks for a crunchy, low-carb snack Serving Tip If you want a more filling keto meal, pair the tuna salad with avocado, hard-boiled eggs, or a side salad with olive oil dressing. What Makes This Recipe Keto-Friendly? A keto diet is generally low in carbohydrates and higher in fat, with moderate protein. This tuna salad fits that pattern because it uses ingredients that are naturally low in carbs: tuna: carb-free celery and onion: minimal carbs in small amounts mayonnaise: fat-forward and low carb mustard and herbs: flavor with very little carbohydrate load If you serve it without bread, or on a low-carb alternative like lettuce cups, it stays especially keto-friendly. What Is Keto Tuna Salad? Keto tuna salad is a keto-friendly version of classic tuna salad. It keeps the creamy texture and savory flavor you expect, but swaps in ingredients that support a low-carb lifestyle: canned tuna for lean protein keto mayonnaise for healthy fats and richness celery and onion for crunch mustard, parsley, and lemon juice for bright flavor Unlike traditional tuna salad recipes that may include sweet relish or high-carb bread, this version stays simple and keto-compliant. Why Tuna Works So Well on Keto Tuna is one of the easiest proteins to use in keto recipes because it is: Naturally low in carbs High in protein Easy to store Ready to eat Versatile for meal prep A serving of albacore tuna typically delivers around 20 grams of protein with zero carbohydrates before mix-ins are added. That makes it a smart choice for people following keto, low-carb, or high-protein meal plans. Chicken of the Sea Albacore Tuna in Water is especially useful for keto cooking because it has a clean flavor and no added sugar or fillers. Nutrition Benefits of Keto Tuna Salad This recipe is more than convenient—it’s also nutrient-dense. Protein Tuna provides a strong source of high-quality protein, which supports satiety and helps make meals feel more satisfying. Healthy Fats Using keto mayonnaise adds fat, which is important for keto eating patterns and helps create a creamy texture. Omega-3 Fatty Acids Tuna contains omega-3s, including EPA and DHA, which are widely recognized as beneficial fats. Low Carbs When served without standard bread, this salad can stay very low in net carbs, making it easy to fit into a daily keto plan. How to Store Leftover Keto Tuna Salad Store leftovers in an airtight container in the refrigerator for up to 3 days . Storage Tips Keep the salad chilled at 40°F or below Do not leave it at room temperature for more than 2 hours Stir before serving if any liquid separates slightly Can You Freeze Tuna Salad? Freezing is not recommended. Mayo-based salads often separate after thawing, which can change the texture and make the salad watery. Recipe Variations Want to customize this keto tuna salad? Try one of these easy variations. Extra Crunch Add more celery, diced pickles, or chopped cucumber. More Flavor Mix in paprika, garlic powder, dill, or a little extra Dijon mustard. Creamier Texture Add more mayo or a spoonful of mashed avocado. Brighter Taste Use more lemon juice or add a splash of apple cider vinegar. Higher Protein Meal Serve with hard-boiled eggs or build it into a tuna-stuffed avocado bowl. Is Canned Tuna a Good Keto Pantry Staple? Yes. Canned tuna is one of the best pantry staples for keto meal planning because it is shelf-stable, affordable, and easy to turn into a satisfying meal fast. Chicken of the Sea offers tuna options that work well for low-carb recipes, including albacore tuna in water and other seafood products that can help you build quick keto meals. Frequently Asked Questions Is tuna salad keto? Yes, tuna salad can be keto if it’s made without sugar, relish, or high-carb mix-ins and served with low-carb sides or bread alternatives. How many carbs are in keto tuna salad? The exact amount depends on the mayonnaise and serving size, but this version is typically very low in carbs and often fits within a keto meal plan. Can I make keto tuna salad ahead of time? Yes. It’s a great meal-prep recipe and usually tastes even better after the flavors have had time to blend. What can I use instead of mayonnaise? You can use mashed avocado, keto-friendly Greek yogurt, or a mix of avocado and mayo for a different texture and flavor. What’s the best tuna for keto tuna salad? Albacore tuna in water is a strong choice because it is mild, protein-rich, and easy to mix with keto ingredients. Sources Harvard T.H. Chan School of Public Health — Ketogenic Diet Overview: https://www.hsph.harvard.edu/nutritionsource/healthy-weight/diet-reviews/ketogenic-diet/ U.S. Food and Drug Administration — Advice About Eating Fish: https://www.fda.gov/food/consumers/advice-about-eating-fish American Heart Association — Fish and Omega-3 Fatty Acids: https://www.heart.org/en/healthy-living/healthy-eating/eat-smart/fats/fish-and-omega-3-fatty-acids USDA FoodSafety.gov — Cold Food Storage Charts: https://www.foodsafety.gov/food-safety-charts/cold-food-storage-charts Where to Buy Use our product locator to find the perfect salmon, tuna, crab or other seafood products from Chicken of the Sea. Products Buy Now Buy Now Buy Now