How about white bread, butter and a thick layer of sugar? That’s an 8-year-old’s idea of heaven right there.
Pickle juice. The neon yellow-green stuff out of the dill pickle jar. Sipped from a wineglass.
Actually, the brine from my own homemade dill pickles is even better.
How do y’all feel about frozen raspberries lubed up with a few tablespoons of balsamic vinegar and a sprinkle of sugar? And no waiting around for them to thaw, mind you: they are eaten sour-sweet-stone cold. If that’s disgusting, then that counts too.
Oh, and: Plain low-fat yogurt with Lipton’s Onion Soup Mix stirred into it. Like trash-cuisine onion dip but with yogurt rather than sour cream. Sometimes I dip raw veggies into it but mostly it’s just me and the spoon.
There, that should have spoiled a few people’s appetite for lunch. 
From my younger years…
Chef Boyardee Ravioli
Mary Kitchen Corned Beef Hash
Oscar Mayer Smokie Links
Tuna Casserole with Kraft M&C and Campbells CofM Soup
Don’t tell anyone, but I have that at night before I go to bed. My mom would never have let me have that when I was 8. But ain’t nobody gonna tell me I can’t have it now.
My mom used to do that with leftover pancakes.
From time to time I’ve had cravings for most foods mentioned in this thread. So here are a couple more:
Every year or so I get a craving for Circus Peanuts. I buy a bag, eat one or two, and am instantly reminded of why I don’t buy them more often.
And remember Nickles Banana Flips? Not as common as they used to be.
And oh yes, pickled tongue. Still available at Jewish delis.
Ooh. Now me want.
I also want some of those supposedly super extremely hot cheetos that dye your fingers an interesting shade of maroon.
You should make your own. We do our own(just had some last night with home-made bangers) and the recipe we use from a korean friend is super-simple and pretty fool-proof. Total yum, but not recommended for work lunches - too ‘fragrant’!
Man, this thread is making me crave all the old “trailer park cuisine” delicacies from my childhood.
Toasted wheat bread spread with canned tomato sauce and sprinkled with sharp cheddar cheese, also known as ghetto pizza.
Saltine crackers thinly spread with Gold’n’Soft brand margarine.
White bread spread with cream cheese and apricot jelly, rolled tightly and cut into pinwheels.
Not from my trailer park days but still makes people go “eww”: anchovies, straight from the can. Dang that’s good! 
Another vote for chicken livers.
Once or twice a year, my body tells me I’m getting anemic, and it demands fried chicken livers.
Stick of butter, half an onion chopped up, then the livers fried on top of that.
The thought revulses me most of the rest of the time 
Shit, there are a lot of things in this thread that make me go “Mmmmm!”
Just today I visited the bakery section of my local supermarket and saw sin incarnate: chocolate chip cookie-cake frosting “sandwiches”. I bought and ate three of them. Sooo good. Sooo evil.
My best friend used to make exactly this, butter and all, when she invited me over for lunch! Only she also cooked a whole pound of bacon (separately) and divvied it up between us. This only happened a couple times a year, but I confess I could happily eat this stuff once a week. Only I don’t want to drop dead from clogged arteries.
Mmm… yes. Gotta be fried until crispy. My mom will crack an egg in the middle of the hash but I prefer mine egg-free.
Someone mentioned pot pies, I think it was Banquet used to make a tuna pot pie. So nasty but so good. I miss them.
I’ll second the pickled pigs feet. Sometimes I’ll get a big jar of them and just indulge, eating them one after the other. Think they’re gross and don’t want them? Great. More for me.
Maybe this should go in the food memories thread, but this comment made me remember a product from my early teens, so the late 1970s. It was called Pizza Quick or something like that and was merely a jar of pizza sauce meant to be consumed just as you say. Turn anything into a pizza! Bread + this sauce + Kraft Parmesan and you’ve got a Reasonable Approximation of Pizza. We gobbled it like the little hogs we were.
My college munchie desperation food: Buttered toast sprinkled with soy sauce.
Kraft Dinner
White fudge covered Oreos
String cheese
Pringles
Squeeze cheese (cheeze in a can) on low sodium Premium crackers.
Well done. 