Combine the soy sauce, garlic, five spice, sugar, sweet chilli sauce and oil in a screw-top jar. Shake until well combined.
If you are using small button mushrooms, they can be left whole, however if you are using mushroom cups, cut into quarters.
Place the mushrooms in a large ceramic bowl. Pour over three-quarters of the dressing. Stir gently to coat. Cover and stand for 30 minutes to marinate.
Add the prawns, salad greens, capsicum, bean sprouts, carrot, coriander and mint to the marinated mushrooms. Toss gently to combine. Spoon over the remaining dressing. Serve with prawn crackers.
0 servings