Heat a char-grill pan or barbecue to high. Drizzle steaks with oil and grill, turning once, until browned and cooked to your liking (2-3 minutes each side for medium rare). Rest for 5 minutes, then thinly slice across the grain.
Step 2
For lime-chilli dressing, combine ingredients in a bowl with 1 tbsp hot water and stir to dissolve sugar.
Step 3
Combine papaya, beans, bean sprouts, herbs and shallot in a bowl with steak, drizzle with dressing to taste, toss to combine and serve scattered with chilli.