Tuna Salad Meal Prep

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Tuna Salad Meal Prep is a great way to have a protein filled lunch ready to go. Easy tuna salad with celery, almonds and cheese is perfect for a low-carb, Keto approved meal.

Tuna salad, almonds, cubed cheese and celery sticks in a meal prep container.

Ingredients Needed: Tuna, celery, onion flakes, mayonnaise, Dijon mustard, lemon juice, salt and pepper. 

Meal prep made easy

Do you meal prep? My husband recently started eating more ketogenic so I have found that meal prep is a must to having things available for him to eat, especially lunches he can bring to work. 

This tuna salad and chicken salad are super easy meals to make and have enough for a few days. Add a few extras in the container like veggies, fruit or a hard boiled egg for a complete meal. 

How to make Tuna Salad Meal Prep

Tuna, mayonnaise, celery and mustard in a bowl.

  • Dice up celery into small pieces and combine with tuna, onion flakes, mayonnaise, mustard, lemon juice, salt and pepper.
  • Stir until well combined.
  • If you are using the tuna salad for meal prep, add lettuce leaves to a meal prep container. Add about about a cup of tuna salad and then any additional items like celery, almonds and cheese. 


What goes well with Tuna Salad?

I like pairing this salad with veggies like celery, cucumbers or bell peppers. You could also pair it with fruit like grapes, apples or melon. 

Is tuna salad healthy?

Tuna is a great source of omega-3 fatty acids and protein. If you are on a ketogenic diet then mayonnaise works well since it is high in fat. You could also add avocado to your tuna salad for extra healthy fat. 

How long does it last in the refrigerator?

I would say about three days in the refrigerator. This recipe is enough for 2 lunches. You could double the recipe and store in the refrigerator. 

Tuna Salad, almonds, cubed cheese and celery sticks in a meal prep container

You may need…

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I have mentioned in the past how much I love these containers for meal prep. They are so easy to clean and never stain. 

You might also enjoy…

If you love your carbs like me, then you might also like this tuna pasta salad from Tastes Better From Scratch. 

If you make this recipe, be sure to give it a star rating below. 

Container with tuna salad, celery and cheese.
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Tuna Salad Meal Prep

By Heather
Easy Tuna Salad Meal Prep- Low Carb, Keto friendly
Prep: 10 minutes
Total: 10 minutes
Servings: 2


Tuna Salad

  • 1 6.4 oz package of chunk light tuna in water
  • 1/2 cup mayonnaise
  • 2 celery stalks, diced
  • 1 tablespoon Dijon mustard
  • 1/2 tablespoon dried onion flakes
  • 1/2 teaspoon lemon juice or 1 drop lemon essential oil
  • 1/8 teaspoon salt
  • 1/8 teapoon ground black pepper


  • 2 celery stalks cut into strips
  • almonds
  • cubed cheddar cheese


  • In a large bowl, stir together tuna, celery, mustard, onion flakes, lemon juice, salt and pepper. 
  • Store in the refrigerator until ready to serve or place in meal prep containers. 


I used chunk light tuna, you can also use albacore tuna. 


Calories: 397kcal | Carbohydrates: 3g | Protein: 1g | Fat: 42g | Saturated Fat: 6g | Cholesterol: 23mg | Sodium: 619mg | Potassium: 124mg | Sugar: 2g | Vitamin A: 215IU | Vitamin C: 2.6mg | Calcium: 16mg | Iron: 0.2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Main Course
Cuisine: American
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