No time — is instant food okay?

Literal

Time not-exist [because-から], retort-food [with-で] good [question-か]?

A casual, hurried question. 時間無い (time-no) drops the particle が that would formally mark 'time' as the subject. レトルト ('retort pouch food') refers to pre-cooked meals in flexible pouches, a staple convenience food in Japan (retort curries, retort rice, etc.) — borrowed from Dutch/English 'retort' (the sterilization process). ~でいい ('OK with X, X will do') is the concession pattern for accepting a less-than-ideal option.