Prepare a baking sheet with parchment and a baking rack.
For the bites: Add the oats, peanut butter, honey, flaxseed, coconut oil and salt to the bowl of a stand mixer fitted with a paddle attachment. This can also be done in a bowl with a spoon and a bit of elbow grease. Mix until completely combined.
Using a tablespoon-sized scoop, scoop the dough and roll it in your hands until it forms a ball. Repeat with the remainder of the mixture. As you work, place the balls on the prepared baking sheet. Freeze until firm, about 15 minutes.
For the chocolate shell: Add the chocolate and coconut oil to a bowl set over a pot of simmering water and allow it to melt and become smooth, about 3 minutes. Mix until smooth and set aside.
Remove the bites from the freezer. One at a time, drop one bite in the chocolate shell, remove it with a fork (or two) and return it to the same baking sheet. Repeat with the remaining bites. Return the baking sheet to the freezer to set the chocolate shell, about 10 minutes.
Sneak one now and transfer the remaining bites to a resealable plastic bag. Store in the freezer. When you are ready to enjoy them, allow them to thaw for 10 minutes or more at room temperature.