Turn the oven on to 200 °C on regular bake. It'll be ready when the gratin goes in.
Cook the pasta
Bring 1.5 l of water to a boil in the saucepan with the pinch of salt, then add the 160 g of elbow pasta. Cook 8 min, a little less than the package says, then drain.
Tip · Stop cooking the pasta a little before the package time, since it finishes in the oven and would go soft otherwise.
Dice the zucchini
Wash the 240 g of zucchini and cut them into small cubes, about 1 cm. Drain the 2 cans of tuna and flake it with a fork.
Sauté the zucchini
Melt the 25 g of butter in the skillet over medium-high heat. Add the zucchini and brown it for 6 to 7 min, stirring, until tender.
Tip · Don't cover the skillet and don't stir nonstop, so the zucchini browns instead of releasing too much water and making the gratin soggy.
Make the sauce
Turn the heat down and add the 160 g of crème fraîche, the pinch of nutmeg, the pepper and the tuna. Stir for 1 min, just to heat through.
Toss with the pasta
Tip the drained pasta into the skillet and mix well. Taste and add more pepper if needed.
Fill the dish
Pour the mixture into the baking dish and smooth the top. Spread the 80 g of shredded cheese over the whole surface.
Bake until golden
Bake at 200 °C for 10 to 12 min, until the top is golden and nice and bubbly. Let it rest 2 min before serving.
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 846 kcal. 29% comes from carbs, 17% from protein and 52% from fat.
62 gCarbs
37 gProtein
49 gFat
Per serving (the dish for 2, divided by 2)
Energy
846 kcal
Protein
36.5 g
Carbs
61.6 g
of which sugars
5.4 g
Fat
49.2 g
of which saturated fat
32 g
Fiber
4.8 g
Salt
1.2 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 $3.47 a serving, adding up the average prices of the ingredients you need to buy.
≈ $6.95for 2 people
≈ $3.47a 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