Cover the baking sheet with parchment paper and brush with sunflower oil. Wash the zucchini and cut into rings about 1 cm thick. Roll the zucchini in flour and spread on a baking sheet. When everything is laid out, sprinkle well with salt and sprinkle with sunflower oil. Bake in the oven until Golden brown for about 20-25 minutes, with the same mode as you bake chicken, it's different for everyone. I baked in convection mode at 150 degrees. For the sauce, mix sour cream, herbs, garlic, lemon juice. We serve ready-made zucchini or separately with sauce, or you can grease each piece.