I would suggest Prime Time with the three small kids, just for the overall atmosphere and "home cooking"/comfort food type of menu. Our kids love the chicken pot pie, as well as the turkey meatloaf, which comes in the shape of Mickey's head (and also tastes good...I guess that is equally important!). With that said, eating in a car is pretty cook at Sci-Fi. If they are legitimately small, you could probably get away with only needing two rows of a car. Each car has three rows, typically for two people each, but you could fit three small kids into one row or, more likely, the smaller parent and the two smaller kids....either way, might still be a tight squeeze, and if too tight, then the 5th person is sitting alone. Still in same car, but since all rows face the front of the car, it could be a little awkward.