Well Mr G, it just so happens that I have here, right in front of me (well, slightly to the left, if I were to be pedantic), a copy of Mike Randall's (AKA Mr K, and/or whatever pseudonym/s he may now go under) recipe for Texas Radioactive Chili. (Note: Only one l). He uses Pinto beans (which, by the way, we've now adopted in favour of the usual Red Kidney) rather than Aduki, but I see no reason why a substitution could not be tried. (Note: The beans are cooked with the rice not in the sauce).

Would you like a copy?