Even before I started eating animal-based/carnivore, eating while staying in hotels was tough. Getting decent, healthy food while traveling was expensive and often impossible.
If there was a hotel breakfast it would be full of waffles, sugary cereal, low-fat sugary fruit yogurt, and if I was lucky, maybe some eggs. And for lunches and dinners, restaurant meals were overpriced and also very heavily carb oriented.
So, I had been thinking about how to devise a reasonable way of making meals in a hotel room.
How about a compact backpacking cookset? I discarded that idea. Not that I'm averse to breaking the rules occasionally, but open flames in a hotel room are probably not the best idea.
I looked into compact plug-in cooktops, but couldn't find anything that was a reasonable size, they were all very large. Finally I found a little plug-in pot. It's nothing fancy, but very compact. I'm storing inside it the things I need for cooking (a little dish soap, sponge, utensils, etc). I also brought a few lightweight plates, that don't fit inside.
This cookset is now seeing it's first trip. After arriving at my destination, I bought some eggs, ground beef, butter, cheese, heavy whipping cream, and sour cream.
So far I've made scrambled eggs, with butter and cheddar cheese, and ground beef, with a little sour cream. These are some of my favorite meals anyway, and it's nice to be able to have them while traveling.
Everything has worked great. I try not to think of it as an alternative to cooking in a regular kitchen, because then you could focus on the negatives (it's not nearly as easy or convenient as being in your own kitchen).
Instead, I focus on how much easier it is to cook like this, compared to cooking while backpacking. For instance, I have plenty of hot water, it's not raining, I didn't have to schlep all my food on my back, etc.
I like to socialize at meals as well, of course, so I won't eat ALL meals in the hotel room. But at least with this setup, I'll have good options.