Wash, peel, wash and boil the potatoes in salted water.
Wash the carrots, peel them, cut them into thin slices and cook them al dente in salted water.
Melt the butter in the pan over a low heat, add the honey, add the finely chopped garlic. Season with salt and pepper and then add the carrot slices. Put the lid on and let it stand for about 10 minutes. Panning the whole thing from time to time.
Season the fish, drizzle with lemon, mix and fry in oil.
Chop the coriander and pour over the potatoes after serving.