1.Preheat oven to 200°C (180°C fan-forced). Grease and line oven tray with baking paper.
2.Combine spices in small shallow bowl. Dip nuts in egg white then in spice mixture to coat; place on oven tray.
3.Roast nuts about 10 minutes, stirring occasionally, until browned; cool.
4.Meanwhile, to make minted lime dressing, combine olive oil, lime juice and finely chopped mint in a screw-top jar; shake well.
5.Combine beans, celery, mint leaves, onion and dressing in medium serving bowl; sprinkle with nuts and cheese.