In a blender add bananas, yogurt, maple syrup, and peanu butter and blend until smooth. Blend away until everything is smooth.
Pour mixture into a small mixing bowl and fold in ½ cup of chocolate chips. Pour mixture into the popsicle mold and place in freezer for 2 hours, or until frozen. Line a baking sheet with parchment paper and set in the freezer for about 5 minutes.
Remove the ice cream bars and tray from the freezer. Take bars out of mold and place on parchment paper lined baking sheet. Place bake in freezer while you melt the chocolate.
In a microwavable safe bowl add remaining 1½ cups of chocolate and 1 tbsp coconut oil. Place in microwave for 30 second increments until small bubbles form. Mix until chocolate is smooth.
Remove chocolate bars from freezer and one by one dip into melted chocolate and place back on parchment paper. Toss chopped walnut on top (optional). Continue until all pops are done and then place back in freezer for another 5 minutes.
Eat right away or store in freezer in an airtight container lined with parchment paper to prevent sticking to tupperware.
Notes
How can my kids help? Help sprinkle the walnuts on top and throw all the ingredients into the blender and help press the buttons.