Pumpkin seeds
Toast the pumpkin seeds in a non-stick frying pan without any oil. Add the sugar and toast for a further 1 min. Remove, spread over a sheet of baking paper, leave to cool.
Dressing
Combine the mustard, vinegar and oil in a bowl, season with salt.
Salad
Add the radish, radish greens, cranberries and pumpkin seeds to the dressing, mix well.