Peel and wash the potatoes. Cook in salted water for about 20 minutes
Wash the asparagus, peel and cut off the woody ends. Cook in lightly salted, boiling water with some sugar for about 20 minutes
Clean broccoli, wash it. Divide into small florets. Cook in little boiling salted water for about 10 minutes. Heat milk and herb butter
Drain the potatoes, mash them. Stir with the heated milk. Season to taste. Drain brockoli and fold into the purée. Pour into a greased casserole dish, pulling slightly higher at the edge. Drain the asparagus and distribute in the hollow
Mix crème fraîche and egg, season. Pour over the asparagus and sprinkle cheese over it. Bake in a hot oven (electric cooker: 200 °C / fan oven: 175 °C / gas: level 3) for 15-20 minutes. Garnish if necessary
Drink: cool white wine