Rinse quinoa in simmering basket and place with water into Thermomix bowl. Insert basket and steam 20 min/100ºC/speed 3.
Set aside to cool.
Char grill chicken breast fillets on a grill pan, brushed with EVOO and on an extremely high heat. You could use a BBQ for this or induction max. Cover pan, turn heat down and allow chicken to finish cooking right through. Set aside to rest before slicing into pieces.
Place spring onions/shallots, herbs and spices into Thermomix bowl and chop 2 sec/speed 7.
Add celery and steamed quinoa and stir through 4 sec/Reverse + speed 2.
Place all ingredients except chicken into large salad bowl while you make the dressing.
To make dressing place all ingredients into Thermomix bowl and blend 10 sec/speed 10.
Toss through salad and serve immediately with chicken slices on top.