6: Bring a large pan of salted water to the boil. When boiling, tip in the carrots and count one minute of cooking time from when the water comes back to the boil.
9: Do the same with the courgettes, using the cooking water from the carrots.
10: Preheat the oven to 210°C (420°F). Assemble the tart: arrange the vegetables in rings, alternating rings of carrots and courgettes ...
11: ...until you have filled the whole tart.
12: Prepare the filling: blend 200 ml liquid cream, 200 g feta, the chopped onion, salt and pepper together.
13: Pour over the tart, then cook in the oven for about 40 minutes.
14: This tart can be eaten warm or cold. For a cold meal, try accompanying it with a green salad and a good vinaigrette dressing.
Remarks
The vegetables can be prepared several days in advance and kept refrigerated in a sealed container. The feta filling, on the other hand, should be prepared at the last minute.