In a pan, bring the stock and butter to the boil. Season with salt and pepper, add the peas and mushrooms and cook for 2-3 minutes, or until tender.
Remove the peas and mushrooms from the pan. Pour half the cream into the pan and bring to the boil. Cook until the volume of liquid has reduced to a sauce consistency.
Preheat the grill to hot.
Put the egg yolks in a bowl and whisk in the reduced cream. Whisk the remaining cream until soft peaks form when the whisk is removed. Add the peas, mushrooms and the mint to the sauce, then add a spoonful of the whipped cream.
Pour the mixture into a heatproof bowl and place under the grill for a few minutes, or until the vegetables are glazed and the sauce is bubbling.
Heat a knob of butter in a frying pan until foaming. Place the prepared scallops in the hot pan and cook for a minute and a half on both sides, or until golden-brown and just cooked.
In a bowl, mix the shallot with a little olive oil, lemon juice and a pinch of sugar.
To serve, divide the glazed peas and mushrooms between the serving plates. Place the scallops on top and put the shallot mix on top. Dress the plates with the pea shoots.