Lightly spray or brush olive oil on to a grill pan. Place over medium heat to warm pan. (See Notes)
Grill kiwi slices, pineapple, and mango till lightly browned on both sides with grill marks. Be careful- kiwi cooks fast and can become mushy!
Remove fruit from grill once cooked and allow 5 minutes to cool before handling.
Dice fruit into small pieces and place in a bowl. Add scallions and cilantro, mixing to combine.
Cover and place in fridge for a minimum of 1 hour up to 24 hours.
Mix in avocado just before serving.
Spoon salsa on to grilled chicken, pork, or fish.