Preheat the oven at 200C

Cut the cauliflower and broccoli into about 2cm pieces

Microwave them for 5 min with some water in a box

Fry the onion (cut into rings) with olive oil or goose fat

Add the vegetable, onions into a baking tray

Add the parsley and some black pepper

Cover the tray with grated cheese

Bake for 30 min !