In a colloquial sense, you can shorten it by asking: "Gusto mong kumain sa labas bukas?" or "Kain tayo bukas?" Where: "Gusto mong" - Do you want "kumain" - to eat "sa labas" - outside "bukas" - tomorrow "Kain" - eat "tayo" - us, together "bukas" - tomorrow People usually guess that when you ask them to eat tomorrow, you would be eating outside like in a restaurant, or elsewhere so you don't really have to ask her if she wants to go out. Or if it's really needed for emphasis, you can ask: "Gusto mong lumabas at kumain bukas?" Where: "Gusto mong" - Do you like "lumabas" - to go out "at kumain" - and eat "tomorrow." - bukas In a formal situation or formal writing, you can use: "Nais mo bang lumabas at mananghalian bukas?" Where: "Nais mo bang" - Do you want ("nais" different from "gusto" /but "gusto" can be both used as "like" or "want" depending on the situation). "lumabas" - to go out "at mananghalian" - and have lunch /if you are emphasizing 'lunch' (dinner = maghapunan). Hope this helps.

you want to go out and = Gusto mo lumabas at get lunch together (with whom by the way?) = Mananghalian kasama (si ______) tomorrow= Bukas. Combining them gives us this sentence: Gusto mo lumabas at mananghalian kasama (si________) bukas. Hope this helped.