Wash all the fruits thoroughly.
Slice the strawberries, halve the grapes, and dice the pineapple.
In a small bowl, whisk together the Greek yogurt, honey, and vanilla extract until smooth.
Add the strawberries, blueberries, grapes, and pineapple to a large mixing bowl.
Pour the yogurt dressing over the fruit.
Gently fold the fruit into the yogurt until evenly coated.
Serve immediately or chill for 20–30 minutes before serving for a cool and refreshing treat.