Tuna Fish Croquettes by Sonia! The Healthy Foodie | Recipe on

Tuna Fish Croquettes

These Tuna Fish Croquettes are a delicious way to use leftover mashed potatoes and probably the best use of canned tuna, ever!

Course Main Course
Cuisine American
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings 4
Calories 307 kcal
Author Sonia! The Healthy Foodie


Tuna Fish Croquettes


Tartare Sauce

  • 1/4 cup homemade mayonnaise
  • 1 tsp finely chopped fresh chives
  • 1 tsp fresh finely chopped fresh dill
  • 1 tsp finely chopped dill pickles
  • pinch cayenne pepper
  • pinch grated lemon zest
US Customary - Metric


  1. Combine the cold mashed potatoes, drained canned tuna, fresh chives, dill, dill pickles, garlic powder, onion powder, paprika and cayenne pepper into a medium sized bowl. Mix with a large spoon until well combined.
  2. Form into 4 equally sized patties (each should weigh about 85g) and then carefully dip each patty in the flour, then in the eggs and finally in the breadcrumbs, reshaping them as needed.
  3. Place the finished croquettes in a plate, cover loosely with plastic film and refrigerate for at least 2 hours, or up to overnight.
  4. Preheat your oven to 400°F, brush a small baking sheet with olive oil and place the refrigerated croquettes on it, then delicately brush their tops with a little bit more olive oil.
  5. Bake in the preheated oven for 25 minutes, or until golden and crispy, flipping once halfway through baking.
  6. Meanwhile, make the tartare sauce by mixing all the ingredients together.
  7. Serve the croquettes promptly, topped with a dollop of the tartare sauce and a sprig of fresh dill, if desired.
Nutrition Facts
Tuna Fish Croquettes
Amount Per Serving
Calories 307 Calories from Fat 198
% Daily Value*
Total Fat 22g 34%
Saturated Fat 3g 15%
Cholesterol 46mg 15%
Sodium 219mg 9%
Potassium 213mg 6%
Total Carbohydrates 22g 7%
Dietary Fiber 1g 4%
Sugars 1g
Protein 4g 8%
Vitamin A 4.2%
Vitamin C 15.8%
Calcium 2.4%
Iron 5.5%
* Percent Daily Values are based on a 2000 calorie diet.