In a small bowl stir together yogurt, lime juice, and cayenne pepper; set aside.
Spoon 1/4 of drained fruit into the bottom of 2 wine or parfait glasses. Add 1/4 of the banana. Spoon 1/4 cup yogurt mixture over fruit and top with 1/4 cup of granola. Repeat layers.
Serve immediately garnished with a sprig of fresh mint.