Fish always beg. I have killies that will beg whenever they see me.
Another option would a marmokreb. Self cloning cray fish, they produce loads of young (just need one!) and the little ones are great for food. Same for cherry shrimp--set up a colony in a tank, and then feed from it. Self sustaining, cheap to keep going, no worries of pest or disease. I know, shocking, considering how pricey cherry shrimp used to be, but for less than $50, you could set up a colony to feed from for years. 10 gallon tank, minimal substrate, sponge filter, java moss, 3-4 shrimp. Add water and wait.
Sounds like a recipe for dinner

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