Clean and clean the mushrooms and cut them into slices. Peel shallots and cut into cubes. Wash basil, shake dry, pluck leaves from the stalks and chop coarsely except for a little to garnish.
Wash the fish, dab dry and season with salt. Heat 25 g fat and fry shallots until translucent. Add mushrooms and braise for about 10 minutes while turning. Deglaze with white wine after about 5 minutes.
Add basil, season with salt and pepper. Heat 25 g fat in a frying pan. Fry the fish on each side for about 3 minutes. Season with pepper. Arrange fish and mushrooms on plates. Garnish with lime and basil.