Wash the legs and pat dry. Sprinkle with soy sauce and leave to stand. Meanwhile, cook the tender wheat for the salad in plenty of boiling salted water for 10 minutes. Then drain.
Peel and finely chop the onion. Wash the herbs. Cut parsley into fine strips, pluck off chervil leaves. Mix lemon juice and 4 tablespoons of oil. Season with salt, pepper and sugar. Mix the prepared salad ingredients and marinade and leave to stand.
Season to taste again just before serving. Fry the legs in 3 tablespoons of oil, turning occasionally for about 15 minutes. Season with salt and pepper. Drip honey into the frying fat and sprinkle with sesame seeds.
Turn the legs carefully and serve with the salad. Garnish with lemon and tomato wedges and chervil.