"Él ama cocinar, por lo que decidió convertirse en chef."
Traducción:He loves cooking, so he decided to become a chef.
"He loves to cook," which is a literal translation and is perfectly acceptable in English, was rejected.
Sorry about that! I've added it as an accepted translation, thanks for bringing to our attention! :)
"He loves cooking, that's why he decided to become a chef" podría ser otra traducción