It's bending the rules, since it's a camping meal, but I have made it at home, too, since it makes a great depression meal. I got it from backpackers, who I'm pretty sure got it from prison inmates:

The Ramen Bomb.

Cook a crushed up packet of instant ramen noodles, maybe with a little more water than usual. Add like half a packet of instant mashed potatoes. You can also add a protein, like... chopped up Spam. Maybe some hot sauce or other fixings if you're feeling fancy.

I hated how much I enjoyed it. Granted, that was when I was really tired and hungry, but that hit the spot.

Also, I've heard meals like the ones in this thread affectionately referred to as "glop," by a fellow glop-enjoyer.

Your dish is called a jacket potato if I understand you right. What I like to do is boil rice then mix it with peanut butter and sriracha and just eat that like it is.

Another delicious hit - chocolate sandwiches!

Two slices of white bread, fill sandwich generously with hot chocolate mix. Deliciously dry and chocolatey.

I make a meaty spaghetti sauce with various spices, but I cook the ground beef in the pan at a low simmer for about 2hrs before I even add the tomato sauce, in order for those spices to penetrate the meat.

I call it a nuclear time bomb because it tastes totally normal - very delicious, even - but about 10-15 minutes in, you are reaching for a hand towel to wipe away the sweat which is quite literally dripping off of you. And you have felt NONE of the hot spices on your tongue.

A much quicker dish involves Cæsar dressing, which I add copious amounts of garlic powder to (4-5 tablespoons), then prevent the dressing from solidifying by adding lemon juice, then wrapping up with freshly ground garlic. As in, a paste, *not chopped or minced._ For a salad using a single head of Romaine, the paste alone uses 15-30 garlic cloves depending on size. And this is on top of the garlic powder. Tastes amazing, but it can get garlicky enough to be barely edible. Think the same kind of burn when chewing down on a fresh raw clove. I sometimes get an “addictive overwhelming thirst” for this garlicky dish that has me gorging on it almost exclusively for an entire week.

Kimchi and blue cheese quesadilla.

Grits with canned tuna.

Grits with chili paste, fried egg, pork fu.

Sandwich of sardines and mayonnaise and raw onion.

OP, my sweet potato lunch is a Stokes Purple one frozen then baked, topped with goat cheese, pepitas, olive oil and fancy salt. I don't even like sweet potatoes but like that there's enough salty/sharp stuff

Sometimes I slice some red Leicester cheese on a small plate and microwave it for around 30 seconds, until it melts. Then I eat it with a teaspoon. I first had it when I was desperately hungry but that cheese was literally the only food I had in, and I liked it enough I did it again. (Red Leicester cheese is like cheddar, but it tends to have a distinctly nutty flavour to it).

I used to have chives growing on the windowsill and it always tickled me to sprinkle some chopped chives over the cheese puddle, because a chive garnish feels very fancy but this "meal" was incredibly trashy.

Had me until the yeast.

Raw jello powder, add a dribble of water to make part of it a super thick paste.

Blue cheese, and sweet condensed milk dip with tortilla chips.

Note: I might have more, but just woke up from a nightmare and its 2:30am. Will try to come back later.

Raw tagliatelle. I love picking it apart and eating it, it has a satisfying crunch, especially when pieces directly overlap, but I'd be silly to just up and serve a plate of raw tagliatelle to someone 😂

Those sweet potatoes are close to Grandma Appalachia's traditional preparation that she got from a recipe her Irish aunt tore out of a magazine back in the 70s, but hers included a hoppy beer to balance the hot sauce