> Onions, carrots, and celery
This is also a major base of French cuisine and called Mirepoix.
Not sure why it would invoke such strong sentiments but if you don’t like the bayer filter, know that some true monochrome cameras don’t use it and make every sensor pixel available to the final image.
For instance, the Leica M series have specific monochrome versions with huge resolutions and better monochrome rendering.
You can also modify some cameras and remove the filter, but the results usually need processing. A side effect is that the now exposed sensor is more sensitive to both ends of the spectrum.