I did some kanga this way the other night. Had potatoes cooking in basket and when they hit the 11 mins to go mark i popped on the varoma tray containing some marinated roo steaks. I just bought the ones from woolies already marinated. They came out absolutely delish, moist and tender and quite rare (just how i like them). The steaks were also rested while potatoes were mashed and salad was served, so about 5 mins.
I'm so happy to have found this kanga cooking option, I could never get it quite right on the grill