Toast the shredded coconut in a dry skillet over medium heat, until golden brown, about 3-5 minutes. Be sure to stir frequently to prevent burning.
Microwave the sugar-free chocolate chips and coconut oil in a microwave-safe bowl, working in 30-second intervals, stirring in between, until fully melted and smooth.
Stir the sweetener into the melted chocolate mixture.
Fold in the toasted coconut and chopped nuts until everything is well coated.
Portion spoonfuls of the mixture onto the prepared baking sheet, spacing a half inch apart.
Refrigerate for about 20 minutes, or until the clusters are firm.