Line baking sheet with baking paper allowing overhang on the edges.
Mix yogurt, honey, vanilla, lemon juice, and salt until smooth. Taste and adjust sweetness.
Pour onto lined tray. Spread to an even 1 to 1.5cm layer using an offset spatula.
Scatter strawberry slices across the surface in a single layer.
Scatter blueberries and raspberries evenly across the surface.
Sprinkle granola in irregular clusters across the surface.
Scatter coconut flakes, pumpkin seeds, and almonds if using.
Drizzle honey in a thin stream back and forth across the entire surface.
Add a pinch of flaky sea salt. Add mint leaves if using.
Press all toppings gently into the yogurt surface with clean fingertips.
Transfer immediately to a flat freezer shelf. Freeze minimum 4 hours or overnight.
Lift bark from tray using paper overhang. Break into irregular pieces from the centre outward.
Serve immediately or store in a zip-lock bag with baking paper between layers.