01 - Line a mini muffin tin or a baking sheet with parchment paper and set aside.
02 - In a large mixing bowl, toss together the puffed quinoa, rolled oats, and shredded coconut. Fold in any optional chopped nuts or dried fruit at this stage if using.
03 - Place the dark chocolate, nut butter, coconut oil, and maple syrup in a medium heatproof bowl. Melt using a microwave in 30-second intervals, stirring between each, or set the bowl over a simmering double boiler until completely smooth and glossy.
04 - Pour the melted chocolate mixture over the dry ingredients and stir vigorously until every piece is evenly and thoroughly coated.
05 - Using a tablespoon or small cookie scoop, portion rounded spoonfuls into the prepared mini muffin tin or onto the baking sheet. Press each portion down gently but firmly to form compact, uniform bites. Sprinkle with flaky sea salt if desired.
06 - Refrigerate the bites for at least 1 hour, or until they are firm to the touch and hold their shape.
07 - Carefully remove the bites from the muffin tin or peel them off the parchment paper. Transfer to an airtight container and store in the refrigerator for up to one week.