The sentence 来た人をごはんにして食べるんだ comes from this source as N4 reading. However, I find some higher-level grammars appear in these N4 lessons so I have a confusion here.
- Is にして here にして of N1 grammar or にする of N5 grammar?
- Does を support して or 食べる?
- What is the literal translation of the sentence?
Thank you very much in advance.