Preheat the oven to 400° and frivolously butter four 1/2-cup ramekins. In a medium skillet, melt the 1 tablespoon of butter. Add the mushrooms and cook over excessive heat, stirring infrequently, till tender and lawful initiating to brown, about 4 minutes. Add the chard leaves and stock and cook over moderate heat, stirring, till wilted, 2 to three minutes; season with salt and pepper.
Spoon the greens into the ramekins. Crack 2 eggs into every ramekin. Add 1 tablespoon of the cream to every and sprinkle every with 1/2 tablespoon of the Parmesan cheese. Bake for roughly 13 minutes, or till the egg whites are lawful build. Again correct style away.