Peel, wash and slice the carrots. Clean and wash spring onions and cut them into rings. Fry both in 1 tablespoon of hot oil. Add lentils, 1⁄2 l water and stock. Bring to the boil, cover and simmer for 8-10 minutes.
Wash the thyme, dab dry and chop coarsely. Dab steaks dry. Fry in 2 tablespoons of hot oil on each side for about 1 minute, season with salt and pepper. Fry the thyme briefly. Remove the steaks.
Deglaze the roasting set with 1⁄8 l water and vinegar, bring to the boil. Boil down for about 3 minutes. Add to the lentil vegetables, season with salt, pepper and sugar. Arrange everything. With it: Ciabatta.