Prepare the pan: Line a rimmed baking sheet or 9x13-inch dish with parchment paper. Leave a little overhang so you can lift the bark out easily.
Mix the yogurt base: In a bowl, stir together the Greek yogurt, honey or maple syrup, vanilla, and a pinch of sea salt.
Taste and adjust sweetness. The mixture should be creamy and slightly sweet.
Spread it out: Pour the yogurt mixture onto the lined pan. Use a spatula to spread it into an even layer about 1/4 inch thick.
Thicker layers are creamier; thinner layers freeze harder and crunchier.
Add the berries: Scatter the berries evenly over the yogurt. If using frozen berries, add them straight from the freezer to prevent color bleed.
Top with crunch: Sprinkle nuts or seeds, coconut, and chocolate chips over the top. Add a little lemon zest if you like a bright, tangy note.
Freeze: Place the pan in the freezer for 2–4 hours, or until completely solid.
Avoid peeking too often; let it set fully.
Break into pieces: Lift the bark out using the parchment. Break it into shards with your hands or cut into squares with a sharp knife.
Serve: Enjoy straight from the freezer. The bark will soften quickly at room temperature, so only take out what you plan to eat.