Clean and wash the vegetables, peel if necessary. Cut cauliflower into small florets, fennel into slices, carrots and zucchini into thin slices, beans and peppers into bite-sized pieces.
Pre-cook the carrots and beans in boiling salted water for about 8 minutes, then drain. Melt the fat. Fry the prepared vegetables for about 3 minutes while turning. Season with salt and pepper.
Pour on the stock, bring to the boil briefly and cook covered for another 5 minutes. Meanwhile wash and dry the meat. Fry in hot clarified butter for 1-2 minutes on each side. For the marinade, peel the garlic and press it through a garlic press.
Clean, wash, quarter and seed the tomatoes. Cut the flesh into small cubes. Wash herbs, pluck leaves, chop if necessary. Mix prepared ingredients, vinegar and oil. Season to taste with salt, pepper and sugar.
Arrange vegetables and meat on a plate. Drizzle with the marinade. Serve garnished with lemon.