Tuna Bake

Ever since I’ve entered Australia, I’ve been exposed to many new dishes I never had before. One of these dishes is Tuna Bake and I LOVE IT! I love the tuna combined with the potato mash, I love the crunchy cheese on top, I love how easy it is to make and I love the fact that this dish doesn’t break the bank!

As a bonus, the kids are always happy to eat this and therefor, it appears quite regularly on our dinner table.

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Let’s head to the recipe!

What we’ll need for 4 servings of Tuna Bake:

For the filling:

  • 3x 425 gr cans of tuna
  • 3 small onions
  • 1/2 cup sliced black olives
  • 1/2 cup sundried tomatoes
  • 2 tbsp minced garlic
  • 1/2 cup freshly chopped parsley
  • Salt and pepper to taste

The topping:

  • 750 gr potatoes
  • 50 ml milk
  • 80 ml thickened cream
  • 50 gr unsalted butter
  • 1 tbsp sour cream
  • 1 cup grated cheese
  • (optional: grated Parmesan cheese)
  • Salt and pepper to taste

The Preparation

I always start with whatever takes longest and in this case, it’s the potatoes. This usually takes about 20 minutes, dependant on how big you cut the potatoes. If you hesitate, just check them with a fork. In the meantime, you can start cutting and frying your onions and garlic. This is the ONLY frying you’ll be doing tonight, that’s how quick and easy this recipe is!

Start cutting up the rest of your ingredients and mix it in a bowl, together with your fried onions and garlic. Make sure you add salt and pepper!
Spray (or wipe) your oven dish with oil and add your tuna bake mix.

Time to start layering your Tuna Bake!

By now, your potatoes will be ready, so they can be drained and mashed with the thickened cream, sour cream and the unsalted butter. Add salt and pepper to taste and start layering it on top of the tuna mix and finish it off with the grated cheese and (optional) some dried parsley.
Place in the oven for about 20 minutes on 175โ„ƒ Fan Force and another 5 minutes on 175โ„ƒ Grill or until cheese is looks golden and crispy.

Serving time!

Who doesn’t love the look of gold and crispy cheese?! Garnish with some fresh parsley and you’re ready to eat!
Personally, I love my veggies and always have some on the side, quickly stirfried with garlic, a splash of lemon and salt and pepper with this dish. Just a simple garden salad would be amazing too!

Bon Appetit, eet smakelijk and enjoy your meal!

Tuna Bake

Quick and easy, family friendly oven bake with tuna, mashed potatoes, topped off with melted cheese
Prep Time 20 minutes
Cook Time 25 minutes
Course Main Course
Servings 4 people


  • 1 Oven dish 30L


Tuna Bake Filling

  • 3 cans (425gr) Tuna in brine
  • 3 Small onions diced
  • 1/2 cup Black olives
  • 1/2 cup Sundried tomatoes
  • 2 tbsp Minced garlic
  • 1/2 cup chopped fresh parsley
  • Salt & pepper to taste

Mashed Potatoes

  • 750 grams Potatoes
  • 50 ml Milk
  • 80 ml Thickened cream
  • 50 grams Unsalted butter
  • 1 tbsp Sour cream
  • Salt & pepper to taste


  • 1 cup Grated cheese
  • Grated Parmesan cheese (optional)


  • Turn oven on 175โ„ƒ, Fan Force
  • Boil the potatoes +/- 20 minutes or until soft

Tuna Filling

  • Brown diced onions and garlic in a pan on medium heat (+/- 2 minutes)
  • Strain tuna and dice up sundried tomatoes, olives and parsley
  • Mix tuna, sundried tomatoes, olives, parsley and fried onions and garlic in a bowl and add salt and pepper to taste
  • Spray or brush your oven dish with your favorite oil and add tuna mix

Mashed Potatoes

  • Strain the boiled potatoes
  • Mash together with the milk, butter, thickened cream and sour cream and add salt and pepper to taste
  • Add this on top of the flattened tuna filling
  • Finish off with the grated cheese (Optional: and Parmesan cheese)


  • Place your dish in the oven for about 20 minutes (175โ„ƒ Fan force)
  • Turn oven settings (still 175โ„ƒ) to Grill if the cheese doesn't have that crispy skin to it for another 5 minutes
  • Let sit outside oven for +/- 10 minutes to cool down and firm up
  • (Optional: Garnish with some chopped fresh parsley)
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