To make the flatbread, preheat the oven to 180°C. Line 2 oven trays with baking paper.
Place 1 bunch of broccolini into the Thermomix bowl (reserving the other bunch for topping), add spinach and garlic. Chop 10 sec/speed 8. Scrape bowl and repeat.
Add remaining flatbread ingredients and combine 6 sec/speed 6. Scrape bowl and repeat.
Spread across the 2 trays and bake for 20-25 minutes. Cool.
Turn the grill onto high in the oven and add broccolini. Cook until starting to char.
Cut flatbread into desired shapes and get topping!