You can omit the dried fruit and sub in chocolate chips (or add a mix of both).
These bars aren’t super sweet, so if you prefer something sweeter you may want to add a touch of sweetener.
To store these in the freezer, wrap the bars individually in parchment paper using 6-inch by 12-inch pieces of parchment, then tie with string or tape to secure. Finally, place all of the bars into a freezer-safe zip bag, press out all the air, and seal it shut. Or, you can simply wrap each bar with plastic wrap or tinfoil.