I think my family has had grilled burgers/dogs with chips and a few other sides pretty often or bbq sandwiches (pulled pork with bbq sauce) with chips and baked beans.
Corn on the cob is another 4th of July favorite with us.
we had steak tips, pasta salad, buffalo chicken dip,watermelon, corn on the cob, hot dogs, coronas and ice cream cones on the 4th. the day before we had burgers, potato salad, fruit + dip, macaroni salad, chocolate dipped marshmallows and cupcakes.