Wash the beans and cut into fine strips. Peel the carrots and slice them into fine leaves. Peel the onion and chop finely.
Heat olive oil in a saucepan and sauté the onion cubes until translucent. Add the beans and immediately deglaze with a dash of vinegar and add 1 teaspoon of sugar. Steam the beans for a good 5 minutes and then deglaze with enough water to cover the beans. Add pepper, nutmeg and a dash of soy sauce and continue steaming the beans at a low temperature for another 10 minutes.
In the meantime, steam the carrot slices in a little salted water with turmeric in another small saucepan for a few minutes until they are al dente. Drain the carrots in a colander and set aside.
As soon as the beans are cooked through, but not completely soft, add the carrot slices, season again if necessary and simmer briefly.