This was really good! The tofu did stick to the barbecue, despite oiling the grill racks. Next time I might use my indoor grill pan for the tofu. I did the veggies in a basket, so they came out fine on the barbecue. I had to add a touch of sugar to the sauce (I know), but that was my only modification. Will definitely make again!
I used regular broccoli instead of broccolini and grilled it in a grill basket. Worked wonderfully. I also didn't have full-fat yogurt so used greek yogurt thinned with half&half.