I can't believe I'm about to write this but one aspect of the solution might be less, as opposed to more, tailgate time (putting an entertaining product on the field in the lion's share of the solution, IMO.).
I'll be the first to admit that my TG group has fallen into the trap (with little hope of climbing out.), but for a 12:00 game I am awake and up between 5:00-5:30, finish packing the 4Runner and wheels up around 6:20 or so for a 6:50 arrival time at Margarita's to meet up and get in the parking lot by 7:00. I say that to say this...we do two full meals (breakfast and lunch) and munchies in between within 4 1/4 hours. Our MO is to get inside by the end of the National Anthem, but there is certainly a positive non-zero chance that the timing slips.
Less tailgate time means one meal and less food.
It worked in the early days of the Rent, when our core group was 3, and we were roasting hot dogs and cheeseburgers on a camping stove every week, while drinking Bud Light a 1/2 mile down the east runway. 15 years later, we typically run at least 8 deep and have the equivalent of a kitchen and living room.