Cut the tofu into 4 triangles. Whisk egg and soy sauce. Turn the tofu rolls in flour, then in egg and sesame seeds, press firmly. Leave to stand for a while. Heat oil in a coated pan.
Fry the tofu slices in it until golden brown. Clean and wash the zucchini, cut them in half lengthwise and cut into pieces. Peel and slice the carrots. Melt herb butter in a pot and fry the vegetables in it.
Season with salt and pepper. Add 4-5 tablespoons of water and simmer covered for about 10 minutes at low heat. During the last 3 minutes add the peas. Finely chop the chervil and add to the vegetables.
Arrange the tofu slices with the vegetables on plates and serve.