Clean the broccoli, cut the florets from the stalk, wash them and let them drain on a sieve. Clean and wash the onions and cut them into 1.5 cm long pieces. Wash the rosemary and shake dry.
Grind half the nuts finely in the universal chopper. Mix with 1 tablespoon of oil and season with salt and pepper. Coarsely chop the remaining nuts. Wash the meat and dab dry. Season with salt and pepper and turn in flour.
Heat 2 tablespoons of oil in a frying pan. Fry the fillets on both sides for about 3 minutes each. Take them out, spread nut mixture on the meat and smooth it down. Sprinkle chopped nuts over it. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 7 minutes.
In the meantime, heat 2 tablespoons of oil, fry broccoli and rosemary for about 5 minutes, turning them over. Add onions for the last 2 minutes. Caramelize with sugar and season with salt and pepper. Deglaze with vinegar.
Arrange meat and vegetables on plates and garnish with rosemary.