Quote:
"Hey, what's up? If you're free tomorrow night, we should get some food or go out to dinner. I could get you around 7. If not, you'll be missing out on a fun night; but lemme know."
Any other ways you would word this?
I think its pretty straight forward and gets to the point.
Oh jeez...
1st Off way to long, your asking a girl out; not to proofread your story

2nd Don't ask her "hey whats up" - to many questions in one text, shes going to answer the first thing she sees (hey whats up) and ignore the date question.
3rd Be WAYY more confident, she'll read this as "hey if you want we could eat or something, i mean if your free around 7, but whenever you want ill make time"
4th Don't be so obvious with the qualifyer try something closer to "I'm going to (restaurant name) tomorrow at 7, if you arn't going to have fun don't come"