Line a baking sheet with wax or parchment paper.  Melt your chopped chocolate.  I like to do this in the microwave (1 minute on 50% power, followed by 10 second increments until melted) using a glass measuring cup.  I find that the taller, thinner shape of a measuring cup works better than a bowl for dipping the banana slices.  Make a “banana sandwich” by putting a small smear of almond butter (or nut butter of choice) in between two banana slices.  Put the banana sandwich on a spoon and dip it into the melted chocolate.  Rest the spoon on the edge of the measuring cup to allow excess chocolate to drip back down.  Place the chocolate-covered banana on the baking sheet and repeat until all of your banana slices have been used.  Top each chocolate-covered banana with a small amount of coarse salt.  Freeze until set, about 15 minutes.  May be stored in the freezer or refrigerator.  Enjoy!