Clean and peel the carrots and cut them into slices about 3 mm thick. Wash, pluck and drain the grapes. Wash the fish fillet, dab dry and cut into medium-sized cubes. Peel and finely dice the shallot.
Whisk the egg. Season fish cubes with salt and pepper and then pull one side through flour, then egg and finally breadcrumbs. Cook the pasta in boiling salted water for about 8 minutes. In the meantime heat 1 tablespoon of oil in a pot and sauté the shallots cubes in it.
Add carrots, deglaze with stock and steam for about 2 minutes. Add sour cream, bring to the boil and set aside. Heat the remaining oil in a pan and fry the fish cubes first on the breaded side until golden, turn and continue frying for about 2 minutes on the meat side.
Meanwhile cut the grapes in half. Drain the noodles and add to the sauce with the grapes. Season with salt and pepper. Bring to the boil, swing through and arrange on plates with the fish nuggets. Garnish with dill and lemon wedges.