1 navel orange - remove peel and pith, cut into dice
1 avocado- dice
1/2 red onion- finely chopped
1/4 cup cilantro- also finely chopped
salt and pepper to taste.
I think this would work with almost any fruit, except berries. Mango, grapefruit and pineapple would all be lovely here. It was great on the fish.