Mix together the seeds , nuts, 2 tbsps of maple syrup and seasoning in a small bowl. Scatter on to a baking tray then roast in the oven for 10 minutes. Remove from the oven and allow to cool a little.
Meanwhile, make the dressing by mixing together the tahini, lemon, 2 tsps of maple syrup and the olive oil in a jug. Season.
Blanch the greens in a big pot of boiling water. Add the broccoli first then, 10 seconds later, the kale. Cook for no longer than a minute so they are still crunchy.
Drain the greens and return to the saucepan. Pour over the dressing and toss to coat, then sprinkle over the roasted nuts and seeds. Serve immediately.