Whisk mustard, honey, white wine, and a pinch of salt and pepper in a bowl until smooth. Set aside.
Unless readily bought, finely chop the almonds.
Wash the fish, pat dry, and rub with a part of the olive oil and some salt and pepper.
Roll fish in almonds and press gently to seal. Preheat a small frying pan over medium heat and coat with the remaining olive oil.
Fry the fish on each side for approx. 2 min. Turn carefully.
While the fish is frying, finely slice the green part of the scallion into diagonal rings.
Serve with prepared sauce and a sprinkle of lemon juice. Enjoy with rice or steamed vegetables.