Apples And Celeriac W Honey Mustard

• 2 green apples
• 1 shallot
• 1 celeriac root
• 120 gr radish
• 80 ml nonfat yogurt
• 60 gr spinach
• 60 ml canola oil
• 30 ml apple cider vinegar
• 30 ml lemon juice
• 30 gr onions (red)