Chop the onions and fry them together with the minced meat until they are crumbly. Add the cleaned and sliced mushrooms and the cleaned broccoli. There is no need to cut the broccoli into small pieces, as it crumbles just from cooking. Pour in the vegetable stock and 1 1/2 to 2 cups of cream and simmer for about 10 minutes. Melt the cheese in the hot soup. Stir the flour into the rest of the cream and use it to thicken the soup. Season to taste with salt and pepper. You can also sprinkle the soup with colored pepper on the plate.
With it you simply serve baguette, flatbread or white bread.