Peel, wash and halve the potatoes. Cover and cook in salted water for about 20 minutes. Peel, wash and chop the kohlrabi. Cover and cook in 1/8 l boiling salted water for about 15 minutes. Add peas and cook for about 5 minutes
Wash the meat, pat dry and cut into fine strips. Fry in a coated pan in hot oil and season
Drain the vegetables and collect the cooking water. Dust meat with flour and sweat it. Stir in vegetable water, bring to the boil and simmer for about 5 minutes. Stir in sour cream. Mix the sauce with salt, pepper
Add vegetables to the sauce. Drain the potatoes. Arrange everything. Sprinkle chervil leaves over it