1. Heat a medium skillet, put kohlrabi and carrots in it and cover with about 1 1/2 cups lightly salted water or broth.
2. Cook about 10 minutes until vegetables are cooked and the water is gone. You might need more water, so feel free to add some.
3. Now you can lightly mash the vegetables, leaving a lot of texture. Don't try to make them smooth like mashed potatoes.
4. Add nutmeg and margarine. Season, to taste.