01 - Line a 9x13 inch baking sheet with parchment paper, ensuring the edges are fully covered.
02 - Evenly arrange the banana slices in a single layer across the parchment, slightly overlapping to create a complete base.
03 - Combine the chopped chocolate and coconut oil in a microwave-safe bowl. Microwave in 20-second intervals, stirring after each burst, until smooth and fully melted. Alternatively, melt gently over a double boiler.
04 - Pour the melted chocolate evenly over the arranged banana slices, spreading with a spatula to cover the entire surface.
05 - Immediately sprinkle the roasted nuts, mini chocolate chips, shredded coconut, and flaky sea salt over the wet chocolate layer.
06 - Transfer the baking sheet to the freezer and chill for at least 1 hour or until the chocolate is completely firm.
07 - Remove from the freezer and break the bark into uneven pieces. Serve immediately or store in an airtight container in the freezer.