Horse and beef really taste pretty different (I've had both, in a number of different preparations), but I suspect that mixing the two together would render the

Horse and beef really taste pretty different (I've had both, in a number of different preparations), but I suspect that mixing the two together would render the final result close enough to beef that the psychological effect of expecting to eat beef would allow people to taste it as just beef -- sort of like those blind taste tests of wines where they added red food coloring to white wine and people (if I remember right, even a couple of wine experts? I dunno, I'd have to look up that study and it's late. :) ) interpreted the taste as a red.