"How's the strawberries?" & "I eat strawberries"
To ask "How's the strawberries?" can you tell "¿C?mo fresas?"
If the answer is 'yes' then, when it comes to "como fresas" the words "cómo" & "como" sounds the same.
How do you know the difference when speaking?
While "Como son las fresas" is a valid sentence, normally in this context you would say "Como están las fresas" (How do they taste). Answer - "Están buenas".
if you are asking how the strawberries are then you would say "cómo son las fresas" or how were the strawberries "cómo eran las fresas" there needs to be a verb in your sentence somewhere. if you were to say that you eat strawberries, you would just say "yo como las fresas" the most important thing is context. the person you are talking to will know what is going on by the context of the sentence.
¿Cómo están las fresas?