Translation:To make a delicious meal, cook well!
aĵo does not mean "meat." Aĵo means a derivative of something. Or something with the qualities of the root
manĝo = meal
manĝaĵo = food ( something that has the quality of being edible)
bono = good
bonaĵo = something good (something with the quality of goodness)
flui = to flow
fluaĵo = liquid, fluid (something thing that can flow)
SEPARATELY from this definition is the definition of something being the edible version of an animal or a material. This is not much different, or a stretch, however I could see someone not seeing the connection.
I recommend checking out: http://vortaro.net/#a%C4%B5o