I just whipped up a small batch of roach chow on a whim. I have this awful coffee maker, passed around cuz nobody wants it, that looks and operates like it's from the 70's. Never used it, but remembered it had a grinder so pulled it out.
On a side note, I googled it and some jerk just sold it to someone on ebay for $30. The description makes it sound great, but it's not, it's really not. And it does NOT have auto shut-off, they lied. That just makes me mad.

So, I threw in cat food, oats, cheerios, and bran flakes, as that's what I have handy. The roaches seem to like the bran flakes. I don't know yet if the bugs like it, tho I gave some to them, including the crickets. The crickets were interested.

What else is good to use? I know fish flakes are good, but I don't have fish so those I'd have to go buy. What have you people used with success in making chow?