Wash the cauliflower and the broccoli, and then strain. Chop the cauliflower florets and the broccoli and set aside.
In a frying pan, melt the butter and cook the rest of the cauliflower and broccoli with the crème fraîche.
Once your vegetables are well cooked, mash using a fork or masher. Add the eggs and mix.
Butter 6 small dishes and place the broccoli and cauliflower in them.
Cover with your mash and place in the oven in a bain-marie for 15 minutes.
This flan is the equivalent of one portion of meat or fish.