These are wonderful. My son and I really love it. It's a nice substitute for popsicles:
dark chocolate (optional)
Cut a banana in half crosswise. Stick a shish kabab stick into each half. Freeze. When frozen if desired dip in melted dark chocolate then roll in nuts. For a creamier texture do not keep frozen for more than 24 hrs.
I usually do mine without the chocolate. But dark chocolate is supposed to be good for you specially if you get it unsweetened. The banana will sweeten it up. I really do love these.