Past participle used as an adjective: "During peak hours" uses a past participle phrase as a time modifier, indicating a specific time period, increasing the specificity and clarity of the sentence.
Gerund as the subject: "Preparing and serving of dishes" uses a gerund phrase as the subject, detailing the core tasks of the chef, increasing the complexity and amount of information in the sentence.
Infinitive as purpose adverb: "to cook, plate, and serve meals" uses an infinitive phrase as a purpose adverb, specifying the specific tasks the chef needs to accomplish, improving the logical structure and goal direction of the sentence.