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a classic that works

Zucchini, potato and tuna gratin

An everyday dish for 2, ready in 55 minutes, around $2.33 a serving. People actually plan it with Popotam, and it's in season in October.

55mintotal
≈ $2.33a serving
875kcalper serving
72gof protein
In season in OctoberFreezes well
Let's cook
Zucchini, potato and tuna gratin, a serving idea
AI-generated image · Serving idea

Step-by-step recipe

check things off as you go

  1. Preheat the oven

    Turn your oven on to 200 °C, convection or top and bottom heat. Oil the baking dish with the olive oil.

  2. Peel and cut the vegetables

    Peel the potatoes (400 g) and cut them into 5 mm slices. Wash the zucchini (300 g) and cut them into 1 cm rounds without peeling.

  3. Cook the potatoes

    Drop the slices into a saucepan of salted water brought to a boil, then cook for 5 min once it's boiling again. They should stay a little firm.

  4. Add the zucchini

    Toss the zucchini into the same water with the potatoes and cook for 3 min. Drain everything well in the colander.

    Tip · Drain for a good while and let the steam escape for 1 min in the colander, otherwise the water from the zucchini makes the gratin soggy.

  5. Make the tuna mixture

    Drain the 2 cans of tuna and flake it into the mixing bowl. Add the crème fraîche (100 g), milk (5 cl), nutmeg, salt and pepper, then stir.

  6. Assemble the gratin

    Spread half the potatoes and zucchini in the dish, top with half the tuna mixture, then repeat with the rest. Sprinkle with the shredded cheese (75 g).

  7. Bake until golden

    Bake at 200 °C until the top is nicely golden and bubbling at the edges. Let it rest for 2 min before serving.

    Tip · If the top browns too fast, cover the dish with a sheet of aluminum foil or move it down a rack in the oven.
And there you go, it's readyCheck off every step to celebrate.

The questions you're asking

short answers, numbers you can check

How many calories in a serving?

One serving has about 875 kcal. 17% comes from carbs, 33% from protein and 48% from fat.

38 gCarbs
72 gProtein
47 gFat
Per serving (the dish for 2, divided by 2)
Energy875 kcal
Protein72 g
Carbs38 g
of which sugars6.5 g
Fat46.5 g
of which saturated fat25 g
Fiber5.9 g
Salt1.8 g

Worked out ingredient by ingredient with the ANSES Ciqual 2025 table, never written by an AI. It's an estimate: veggie sizes and brands make the numbers vary.

How much does it cost?

About $2.33 a serving, adding up the average prices of the ingredients you need to buy.

≈ $4.66for 2 people
≈ $2.33a serving

Pantry salt, oil and spices aren't counted. Your store and your brands will move the total, but the ballpark is right.

How long does it keep?

1 day in the fridge, in a closed container, once cooled within two hours. After that, into the freezer it goes.

1 dayin the fridge
Yesin the freezer, thaw it in the fridge the day before

Times Popotam uses for meal prep, based on ANSES guidance, rounded down. The details: how long cooked dishes keep.

and the rest of the week?

Popotam plans your whole week

Lunch and dinner, with dishes like this one, based on your tastes, your time and your budget. The grocery list is sorted by aisle. Free, no account.

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With the same ingredients

zucchini, potatoes, canned tuna in water…