Trim the ends from the courgettes and slice them into rounds about 1cm/⅜in thick. If the cut surfaces look particularly wet, blot them briefly with kitchen paper.
500 grams courgettes/zucchini – small or medium
Finely chop the garlic, grate the lemon zest and grate the Parmesan before you start frying. The courgettes cook quickly once they are in the pan.
2 teaspoons fresh minced or finely chopped garlic, about 2 medium cloves, ½ teaspoon finely grated lemon zest, 40 grams Parmesan, finely grated and divided
Heat some of the olive oil and butter in a large frying pan over medium-high heat. When the butter is foaming and a courgette slice sizzles on contact, the pan is ready.
2 tablespoons olive oil, divided, plus a little extra if needed, 25 grams butter, divided, plus a little extra if needed
Arrange the courgette rounds in a single layer. Fry them undisturbed for 2½–3 minutes, until the undersides are deep golden with a few darker brown spots.
Turn the slices with tongs, a fish slice or two forks. Fry the second side for another 2–3 minutes, until golden and tender but still holding their shape.
Transfer the cooked courgettes to a bowl and repeat with the remaining slices. Divide the remaining olive oil and butter between the batches, adding a little extra if the pan looks dry. Do not crowd the pan, or the courgettes will steam instead of brown.
Once all the courgettes have been fried, reduce the heat to medium. Add the reserved butter, or a little extra if needed, followed by the garlic. Cook for 20–30 seconds, just until fragrant. Do not let the garlic brown.
Remove the pan from the heat and stir in the lemon zest and lemon juice. Pour the garlic butter over the courgettes.
1 tablespoon freshly squeezed lemon juice
Add the oregano, ½ teaspoon salt, black pepper and half the Parmesan. Toss gently, taste and add a little more salt or lemon if needed.
1 teaspoon dried oregano, ½ teaspoon fine sea salt, plus more if needed, Freshly ground black pepper, to taste
Transfer the courgettes to a serving dish. Scatter over the remaining Parmesan and optional chilli flakes. Serve immediately.
A pinch of chilli flakes, optional