If you want to get those other two items yourself, one way would be with Pandora’s Box: with the Lockpicking aptitude, watch for a byte that changes from 16 to 0 when you learn the skill, then change it to 1 or 2, then Divide Food.
This might be a bit beyond me, I just get the mushroom steak, even after changing that 0 to a 1 or 2. I am curious about the "yetch" and "not bad" food items though ^_^
Did you at least succeed at getting it to list "Lock Picking (1)" in the skills list? Because none of the bytes I changed seemed to affect it at all. I haven't used Pandora's Box much, though, so I might be doing something wrong.