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Zucchini, tuna and potato gratin

An everyday dish for 2, ready in 40 minutes, around $2.19 a serving. People actually plan it with Popotam, and it's in season in October.

40mintotal
≈ $2.19a serving
555kcalper serving
34gof protein
In season in OctoberFreezes well
Let's cook
Zucchini, tuna and potato gratin, a serving idea
AI-generated image · Serving idea

Step-by-step recipe

check things off as you go

  1. Preheat the oven

    Turn the oven on to 180°C (thermostat 6).

    Tip · To keep the gratin from burning, keep an eye on it after 10 min in the oven.

  2. Peel the potatoes

    Peel the potatoes and cut them into thin rounds (3 to 4 mm).

  3. Cook the potatoes

    Boil the potato slices for 8 min in the saucepan with salted water. Drain and set aside.

  4. Cut the zucchini

    Wash the zucchini and cut them into thin rounds (3 to 4 mm) without peeling. Set aside.

  5. Sauté the vegetables

    In the skillet with the olive oil, sauté the zucchini and drained potatoes for 5 min over medium heat. Salt lightly.

  6. Add the tuna

    Flake the drained tuna into the skillet and stir. Season lightly with pepper.

  7. Make the sauce

    In a bowl, mix the crème fraîche, milk, nutmeg, half the shredded cheese and a little salt. Set aside.

    Tip · For a creamier gratin, add a little warm milk before spooning in the sauce.

  8. Assemble the gratin

    In the baking dish, layer the vegetables and tuna. Spoon the sauce over the top.

  9. Sprinkle with cheese

    Scatter the rest of the shredded cheese over the top.

  10. Bake the gratin

    Bake at 180°C for 15 min until the top is nicely browned.

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 555 kcal. 21% comes from carbs, 24% from protein and 53% from fat.

29 gCarbs
34 gProtein
33 gFat
Per serving (the dish for 2, divided by 2)
Energy555 kcal
Protein33.7 g
Carbs28.9 g
of which sugars5.7 g
Fat32.5 g
of which saturated fat16.9 g
Fiber5.6 g
Salt1 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 $2.19 a serving, adding up the average prices of the ingredients you need to buy.

≈ $4.37for 2 people
≈ $2.19a 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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