+1 for a corn maze. If you go in the evening, lots of these places also have a firepit where you can have a hot chocolate and roast marshmellows. Plus evening time means no kids.
Personally I avoid lunch/dinner on the first couple dates. I'd rather spend that time doing something fun and not having my mouth full of food, unable to communicate. That said, you can always grab some sushi or some easy Chinese food take out and go hit up a park bench at a beach during sunset. At least this way you've got something else to look at instead of watching each other awkwardly eat. lol