Wash the asparagus. Peel the white asparagus and cut off the woody ends. Peel only the lower third of the green asparagus or cut off the ends generously
Clean, wash and slice the mushrooms. Clean, wash and chop the tomatoes. Peel and chop onion
Wash the pork tenderloin, dab dry and possibly cut in half. Rub with salt and pepper. Heat oil. Brown the meat in it. Take out. Fry the mushrooms and onion in the frying fat. Season with salt and pepper. Add 3/8 l water, bring to the boil. Dissolve stock in it. Put the meat on the mushrooms and braise covered for 15-20 minutes
Cook white asparagus in boiling, lightly salted water covered with a little sugar for about 20 minutes. Add green asparagus after about 5 minutes and cook
Take the meat out and keep it warm. Add tomatoes, green pepper and cream to the mushrooms and bring to the boil. Add sauce thickener and bring to the boil briefly. Season to taste with salt and pepper. Wash the chervil, pluck (chop parsley) and add
Remove the asparagus and drain. Cut the meat into slices. Arrange everything on a plate. New potatoes taste good with it