I took some tailgate foods last Fall: cauliflower hummus, mockamole (eaten with cukes, celery, and raw bell peppers)
I love the deviled egg idea & hard boiled eggs, too.
If you were looking for meats to take and wouldn't have cooking access, you'd just have to decide what you like cold. Chicken salad works for me! I also like cold chicken or cold steak dipped in the above dips.
I also made some zucchini/packet muffins that travel well.
Recipes in recipe threads.
Losing weight is hard. Maintenance is hard. Being fat is hard. Pick your hard. (-Ishbel)