Hi there, Blue! Thank you so much for the ideas! How brilliant to use the frozen chili as an ice block. And, I LOVE flax muffins.

Here's what I ended up bringing:
Meals:
Steak for Friday night and dogs/brats for Saturday night
7 layer salad to use as a dinner side
Keto pancake batter for Saturday morning
Low carb Mission tortilla wraps (it has been a LONG time since I bought these, and realize they're not for everyone) for wraps (made the night before) and breakfast burritos.
I precooked sausage links, shredded cheddar, and cracked eggs into a plastic container for the burritos the night before we left.
Dark chocolate dipped strawberries for dessert both nights

Snacks:
Boiled and deviled eggs, celery and cherry tomatoes for my mom's dip (sour cream, cream cheese, mayo, spices, bacon), pecans, and Whisps "crackers".

Saturday afternoon I made a snack plate in lieu of lunch: 3 types of cheese, summer sausage, a few dill pickles, black olives, nuts, some of the Whisps and a bit of dried fruit for DH.

We did NOT go hungry.