Peel and clean the carrots, leave about 1 cm of carrot green. Wash and clean the celery and cut into pieces. Quarter the bell peppers, clean, wash and, except for 4 quarters of bell peppers, cut into strips.
Peel the garlic and cut into thick slices. Put the vegetables and garlic slices on a baking tray. Pour oil over them, season with salt and pepper. Mix the vegetables well and bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 25-35 minutes.
Wash the thyme, shake dry and chop the leaves of 5 stems coarsely. Add the chopped thyme to the vegetables about 5 minutes before the end of the cooking time. Cut the rest of the pepper quarters into small cubes
Mix sour cream and quark and season with salt, pepper and a little lemon juice. Stir in aiwar and paprika cubes loosely and arrange in a bowl and garnish with some thyme. Arrange the vegetables and garnish with the remaining thyme.