Barbecued kangaroo and macadamia salad with honey mustard dressing

Ingredients: – 2 dried lemon myrtle leaves (or 1/2 teaspoon lemon myrtle seasoning) – 2 rosemary sprigs, leaves picked – 3 garlic cloves – 1 tablespoon macadamia oil – 2 tablespoons chopped fresh thyme – 600g kangaroo loin fillets  – 2 cups each baby spinach & rocket leaves – 1/2 red onion, thinly sliced –…