In a small bowl, combine olive oil,pineapple juice, cumin, garlic powder, salt and pepper. Whisk together.
In a large bowl, combine diced zucchini, diced pineapple, and black beans.
Pour the liquid in the small bowl over the produce in the large bowl. Toss thoroughly.
Add chopped cilantro. Toss again.
Enjoy as a side dish, with tortilla chips or as a topping for fish, chicken, or pork.