For the dressing, combine all the ingredients in a bowl. Add salt and pepper and whisk to combine.
Place a tray in the fridge to chill for 10 minutes. Blanch the Broccolini® in a saucepan of boiling salted water for 1-2 minutes until bright green and just tender. Drain quickly and arrange onto the cold tray in a single layer. Pour over the dressing and turn to coat. Set aside for 15 minutes to marinate.
Place sesame seeds in a small frying pan and shake over medium heat until light golden. Add the cashews and cook for 1-2 minutes until warm. Remove to a small food processor. Add cumin, paprika and salt and pulse until finely chopped.
Cut the feta into 3cm pieces. Roll the feta in the cashew mixture, pressing on with fingertips.
Arrange the Broccolini® on plates or a platter, top with feta and snow pea tendrils. Spoon over dressing (from marinated Broccolini®) and serve with flat bread.