Peel and wash the carrot, dab dry and grate finely. Clean, wash, dice or finely grate the radishes. Mix cream cheese and cottage cheese. Cut cress from the bed and chop coarsely, except for a little bit for sprinkling.
Fold in carrots and radishes, except for a little bit for sprinkling, and cress and season with salt, pepper and 1 pinch of sugar. Arrange the spread on e.g. slices of rye bread. Sprinkle with radishes, carrots and cress.