Cut the fennel into small strips with a slicer and cut the carrots into strips with a Julienne peeler or a potato peeler.
Cook the spaghetti in salted water.
Chop the onion and sauté briefly in a little oil together with the garlic. Then add the fennel, sauté briefly and then add the carrots. Steam until the vegetables are cooked but still crisp. Then sprinkle 1 teaspoon of vegetable stock powder over it and deglaze with a dash of white wine and the juice of 1/2 lemon.
Cut the tomato into cubes and fold in with the cooked spaghetti. Season with salt and pepper and cut a few slices of salami into slices and sprinkle over them.
You can also leave out the spaghetti, but I think that at least a few carbohydrates won`t do any harm.