You need to look into black soldier fly production. Also duckweed.
As a side, I'm going to share my long term goal with you,
AQUAPONICS! You buy an IBC tote, cut the top off, put water and fish in, have the water routed through plants to clean it, get amazing plant growth and fresh fish for the family, and chickens! My goal is a small green house for this, filling with bluefin carp (cold resistant) with a secondary tank next to the first tank made from the top, much shorter, and fulled with shrimp and duckweed (which would also be added to the big tank occasionally) but with the tap to the original tank on full blast so any fry end up in the second "grow out tank", this is the tank that would empty into the garden beds and eventually be pumped back up into the main tank, after being naturally filtered by feeding your plants!
The best benefit of this is that between the black soldier flies, the chickens, and the carp you have a good source for any and all food waste you find to be turned into viable healthy food for you and the family. The carp get a full diet from BSF, duckweed, shrimp, and scraps. With the shrimp, duckweed, carp, and BSF you would basically have a complete chicken feed if you just add brown rice, greens and herbs regularly. (But you may want to look into other sources for amounts/balancing on that)
This might be more work than you want to do, but most found food i have stumbled across was on the edge of edible, so I wanted to share a more complete "upcycling" plan for it for you.
