"Does he like Spanish food?"
Translation:¿A él le gusta la comida española?
I don't know why DoubleLingot's reply was downvoted, but it lines up with the top answer here: https://www.spanishdict.com/answers/167561/is-there-a-rule-for-when-you-use-the-definite-article-before-a-noun-me-gusta-comida-mexicana-me-gusta-la-comida-mexicana
"le" (the indirect object pronoun) in this case is referring to the man who likes spanish food. Its use stems from the way gustar works, literally meaning "spanish food is pleasing TO HIM", hence the use of an indirect object.
(The "A el" is for emphasis, and clarifies that it is a male that likes spanish food.)