For the smashed Qukes®, whisk oil, maple syrup, sriracha and lemon juice in a bowl. Cut the Qukes® in half lengthways and turn cut side down onto the board. Use a wide blade knife to smash the Qukes® into rough pieces. Add the Qukes® and shallots to the oil mixture and stir to coat. Stir in black sesame seeds just before serving.
Spread the avocado over the toasted sourdough. Spoon over the smashed Qukes and a little of the dressing. Season and scatter with herbs. Serve.