Choose a glass or bowl for layering.
Add 1/2 cup of yogurt to the bottom.
Layer 1/4 cup of granola on top of the yogurt.
Add a layer of mixed berries over the granola.
Place some banana slices on top of the berries.
Repeat the layers: yogurt, granola, berries, and banana.
Drizzle honey or maple syrup if desired.
Add a sprinkle of vanilla extract for extra flavor.
Top with whole berries and nuts for garnish.
Serve immediately or refrigerate for later enjoyment.