Roast the pecans by placing them on a lined baking tray and putting them into a cold oven set to 200°C for exactly 8 minutes. (Set a timer!) Transfer to a chopping board and roughly chop.
Place the spinach and other greens into a large bowl. Add all other salad ingredients.
Place all salad ingredients except poppy seeds into the Thermomix bowl and blend 10 sec/speed 10. Add the poppy seeds and combine, 5 sec/speed 5.
Dress the salad, without adding too much of the dressing at a time. Toss to combine. The greens should be glossy but not soggy. Reserve any remaining dressing in an airtight jar in the fridge. Serve immediately after dressing.