Wash the fish, dab dry and cut into smaller pieces. Sprinkle with lemon juice, salt and leave to stand. Wash potatoes and cook in salted water for about 15 minutes. Clean, wash and roughly chop the spinach. Clean, wash and chop the mushrooms.
Peel garlic, press through a garlic press. Melt the fat. Sauté garlic in it. Sauté mushrooms, season with salt and pepper. Add spinach and let it collapse. Deglaze with cream, bring to the boil briefly. Season to taste with salt and pepper. Rinse potatoes cold, peel, cut in half lengthwise. Heat 1 tablespoon of oil and fry the potatoes for 5-8 minutes. Whisk the eggs.
Season to taste with salt and pepper. Rinse potatoes cold, peel, cut in half lengthwise. Heat 1 tablespoon of oil and fry the potatoes for 5-8 minutes. Whisk the eggs. Turn fish pieces one after the other in flour and eggs. Fry in 100 ml hot oil until golden brown. Arrange fish, vegetables and potatoes in portions garnished with lemon and dill