YOU SAID:

I will be home in about a half a minute to catch some lunch

INTO JAPANESE

昼食をとるために約30分で家に帰ります

BACK INTO ENGLISH

I'll be home in about half an hour to have lunch

INTO JAPANESE

昼食を食べるために約30分で家に帰ります

BACK INTO ENGLISH

go home in about 30 minutes to eat lunch

INTO JAPANESE

昼食を食べに30分ほどで帰宅

BACK INTO ENGLISH

Come home in 30 minutes for lunch

INTO JAPANESE

30分で帰宅して昼食

BACK INTO ENGLISH

home in 30 minutes for lunch

INTO JAPANESE

30分で帰宅して昼食

BACK INTO ENGLISH

home in 30 minutes for lunch