Read the sentence. We usually are so hungry at lunch, we eat whatever the cafeteria staff has decided to cook. What is the function of the underlined noun clause? predicate nominative indirect object subject direct object

The function of the underlined noun clause is direct object.

Explanation:

A noun clause is a dependent clause that acts as a noun. That is, they can act as subjects, direct objects, indirect objects, predicate nominatives, or objects of a preposition. In this case, the noun clause is "whatever the cafeteria staff has decided to cook" and it functions as the direct object of the transitive verb to eat.