Some ideas if you have a small fridge in the hotel. You can cook eggs in the microwave. Just be sure to beat them well with a fork in a cup. Microwave for about a minute. Then whip it up again and microwave another minute. Don't forget the butter. You can throw in cheese, veggies, or whatever you want with them. Beef jerky, pepperoni, pork rinds....good sources of protein besides eggs. You can precook bacon and take it with you in a baggie. Tuna and mayo perhaps?

Bodybuilders are known for having "6-pack bags" (no, not the abs - bad joke) that hold 6 meals with cold packs and stuff. You could pack meat, with coconut oil, avocado, etc. and keep it in the fridge every night. It would probably last as long as you need it to that way.

Pouch tuna has a much better flavor than tinned/canned stuff. The beef and cheddar sticks are good at room temp. Macadamia nuts. Mayo packets to squirt into your tuna pouch, eat with a fork or "squeeze it" if you're creative. A small thing of dill relish is good for tuna stuff.

Trader Joe's or someone makes single serve coconut oil packets that can be added to coffee/hot tea/other hot beverage of choice...or just done like a shot if preferred. Butter packets can be kept room temp (think restaurant stuff). Get canned veg like green beans, dump the water, stir in a "pat" or three of butter, it will melt as you eat it.

For IF, I strongly recommend loaded/bullet proof/primal coffee/tea/hot beverage of choice. The coconut oil and gentle cooked custard remedy can be added to most gas station temp coffee....carries me through at least 12 hours if I stay hydrated, though dunno about heavy labor.

I like pepperoni. If you bake it and regular cheese like "cheese crisps" and "pepperoni chips", it can stay temp stable for a day or so.

Also, a good cooler might be good for cream cheese and cold cuts with pickles for "wraps..."

Chicken broth
Canned/pouched tuna and salmon
Mayo packets, go to a restaurant supply
Pork rinds
Beef jerky sticks
Almonds, cashews, pistachios (mixed)
Mason jar with tea bags and water(make sun tea or long-steep)
Bacon bits(shelf stable, eat with a spoon)
String cheese keeps well in a backpack wrapped in a towel
Single serve almond butter from justins, easy to eat without hands
Crispy bacon is good wrapped in the same towel as the cheese for about 24 hours
Cured turkey legs wrapped in the towel
Certain nature valley granola bars are 9 net carbs(cheaper than atkins and more heat stable)
Cinnamon, a few drops of splenda and a dash of cinnamon in a snack bag, rip the corner off and squeeze out
Cream cheese in single serve packs can be frozen and kept in the towel

Keith, make me some pemmican to take on my train trip in August....