Chop the onion into feathers, chop the garlic finely.
Melt the butter in a frying pan, fry the onion and garlic for a few seconds.
Peel the potatoes and cut them into slices.
Cut the fish into medium - sized pieces 2 by 2 cm .
Lightly stir the roasting, potatoes and fish. Add a little salt.
Put it in a baking dish.
Prepare the sauce.
Add flour to the cream, mix so that there are no lumps + chopped dill.
Pour out the contents of the mold, pepper, sprinkle with lemon. We send it to a preheated 180-200 deg. bake in the oven for 20 minutes.