Cut half of the nectarine, peach, banana, and apple into roughly 1cm pieces and set aside.
Roughly chop the remaining nectarine, peach, banana, and apple. Add these to the yogurt along with half the carrot, linseed oil, and honey. Blend with a hand blender until completely smooth.
Add the reserved fruit pieces back to the yogurt mixture. Fold in the muesli and flaxseed. Sprinkle cinnamon powder over the top and serve.