Zucchini Gratin with Tomatoes and Spiced Beef

What Zucchini Season Is Actually For

Every August, gardens and markets conspire to bury us in zucchini, and every kitchen needs one dish that turns the surplus into something people request. In North African homes, this is that dish: rounds of zucchini and ripe tomato layered with cinnamon-scented beef and béchamel, baked under a golden cheese crust.

This zucchini gratin (courgette gratin, for UK readers) is the summer member of this blog’s gratin family, alongside the potato, green bean, and shrimp versions. It is also the one where technique earns its keep most, because zucchini is ninety-five percent water and will happily flood a lazy gratin. The method below takes the water out first, and the payoff is layers that hold and flavors that concentrate.

This bakes all through zucchini season and converts the vegetable’s loudest critics, who usually discover that their complaint was never zucchini, it was water. The salting time and oven route below are what make it survive repetition.

Ahead: the ingredient list, five steps with photos, the salting rule that decides everything, the traditional fried version with an honest note, and the make-ahead answers.

What the Gratin Is Built From

For the Layers

Aubergine Instead

• No zucchini? Yellow summer squash behaves identically, and a mixed yellow-and-green gratin is the prettiest version of this dish.
• Vegetarian table? Skip the beef and double down: add a layer of thinly sliced sautéed mushrooms and an extra handful of cheese between the vegetables. The cinnamon moves into the béchamel with the nutmeg.
• Lighter topping? Half the cheese plus 3 tablespoons of breadcrumbs gives the golden crust with less richness.

Salting, Layering, Baking

Driving Out the Water First

• Small zucchini or none. Large specimens are water balloons with seeds. If only big ones exist, halve them, spoon out the seed core, and slice the firm flesh.
• Firm tomatoes, thin slices. Overripe tomatoes dissolve into the layers; firm ones hold their shape and release just enough sweet juice into the béchamel. The same rule governs the stuffed tomatoes.
• Storage: Three days in the fridge, reheated in the oven for the crust’s sake. This gratin does not love the freezer; zucchini returns weepy. Cook it in season, eat it in season.
• Rest the full ten minutes. More than any gratin in this series, this one needs its rest: the vegetable layers set as they cool slightly, and patience is what makes clean squares possible.

Aubergine and Other Summer Swaps

The Traditional Fried Version

Algerian home cooks fry the zucchini and tomato rounds separately in hot oil before layering, and the flavor is nuttier and richer for it. If you go this way, skip the salting (frying handles the water) and drain the rounds well on paper. The roasted route trades a little of that depth for a lighter dish and an unsplattered stove.

The Rice-Bottom Version

Spread ¾ cup of parboiled rice as the base layer before the vegetables, and add ½ cup of stock with the béchamel layers. The rice drinks the juices into a built-in side dish, and the gratin becomes a fuller one-dish dinner.

Summer Additions

A layer of thinly sliced garlic between the zucchini and tomato is worth adding, and mint alongside the parsley suits it when the plant is generous. The corner pieces will be argued over regardless of how they are distributed.

What Sits Beside It

In summer this is dinner with bread and a salad: the easy tabbouleh recipe for the herb-forward route, with rounds of the easy Moroccan bread recipe for the béchamel edges. It also partners naturally with simple grilled chicken or the easy chicken shawarma recipe when the table is hungrier.

For familiar Western settings, treat it as you would a vegetable lasagna or moussaka’s lighter cousin: a green salad, a lemony dressing, and nothing else needed.

Zucchini Gratin, Answered

How do I keep zucchini gratin from being watery? Two moves in sequence: salt the rounds 20 minutes and pat dry, then roast them before layering. Together they remove the water zucchini would otherwise release into the dish, and firm tomatoes plus a proper rest handle the remainder.

Do I have to salt the zucchini? For this layered gratin, genuinely yes: it is the difference between defined layers and a flooded dish. The only exception is the fried variation, where hot oil does the dewatering instead.

Can I make zucchini gratin ahead? Assemble it fully up to a day ahead and refrigerate unbaked, then bake with 5 to 10 extra minutes from cold. Baked, it keeps 3 days and reheats well in the oven, though the freshest bake has the best texture.

Can I freeze it? Not recommended: zucchini turns weepy and soft when thawed, and the layers lose their definition. This is a cook-in-season dish; the potato gratin on this blog is the freezer-friendly sibling.

Is this recipe halal and can it be gluten-free? Halal with halal-certified meat throughout. Zucchini is also low in calories and a good source of vitamin C, per the USDA food database. For gluten-free, thicken the béchamel with 1½ tablespoons of cornstarch whisked into the cold milk instead of the flour roux; everything else is naturally gluten-free.

The Dish Zucchini Season Was Waiting For

Four gratins now live on this blog, and this zucchini gratin is the one the garden writes the schedule for: zucchini and tomatoes at their peak, cinnamon-scented beef between them, and a golden crust announcing that the surplus has been handled with honors.

Bake it while the markets are generous and report the verdict: roasted or fried, beef or the mushroom version, and whether your corner-piece negotiations went better than mine. And when a neighbor arrives holding zucchini and an apologetic smile, you now know exactly what to say.