White bread, butter, bologna, and ketchup!
Scrambled egg sandwich with ketchup!
Peanut butter and butter on white bread. No jelly!!
I used to put mayonnaise and ketchup on every sandwich I ate. What the hell was wrong with me?
Sweet condensed milk sandwiches
Sliced avocado sandiwch
Egg salad on soft white bread
Sliced cucumbers on white bread with Miracle Whip, salt and pepper
To paraphrase Samuel Johnson: “No, Sir, when a man is tired of peanut butter & jelly, he is tired of life!”
The Roman Meal bread bakery is up there, too. Nostalgia is one thing, fiber requirmement another.
One “bread” I miss now that I live in the Eastern US is Sailor Boy Pilot Bread (actually hardtack), basically a 100-calorie saltine the size and weight of a cork coaster. No fiber there, that’s for true.
Not fried boloney and no mayo on my sammich, please. I was, and still am, VERY particular about that!! 
Why go to all the trouble to find 2 pieces of bread, just spoon straight from can to mouth!! That stuff is evil, in a good way.
The thread’s reminded me I haven’t had peanut butter and lettuce sandwiches in a long long time, maybe not for two decades.
I was thinking of how horrible that sounded while I was reading it. Then something clicked in my head, “oh it has peanut butter in it, it can’t be bad.”
I’m such a peanut butter whore. 
I just had a humongous fried baloney sandwich with hot mustard on white bread last night! Darned good, too!
I was mad for Velveeta cheese with mustard on Italian bread - I remember sharing bits of cheese with the cat.
Oh, how about sardines on white bread with ketchup? I loved sardines but couldn’t bear to look at them. Kippers were pretty good, too, and not full of crunchy bones.
Nothing beats a good BLT with a slice of cheese and mayo. I try not to eat pork or mix meat and dairy, but I still have one of these sandwiches every now and then.
My dad says once a year (summer vacation) is the perfect # of times for fluffernutters. I tend to agree.
And not a sandwich, but a definite guilty pleasure is frosting on saltines. Haven’t had that in years, but I still think about it.
My top three:
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Take however many slices of white bread, put swiss (or other, but swiss is best) on top in a layer, then broil them (with racks down in the center of the oven, not close to the burners) for a few minutes, until the cheese is bubbly. Heaven!
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Bologna sammiches on white with a ton of mustard, and nothing else.
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The smashed peanut butter and banana combo. When I was first married I mentioned this to my wife, thinking she’d never heard of the idea, but she immediately said she’d fix me one. So she did it, but the banana was simply sliced and placed on the bread! AAAAGGH! No, it has to be mushed up with a fork! I straightened her out on that.
Ham, cream cheese, and mustard.
Only recipe from a sandwich “cookbook” in my elementary school library that had nothing I didn’t like at the time.
Still eat it.
Peanut butter (creamy) and dill pickle slices on Roman Meal bread. I still make one once in a while (although the bread is whatever is in the house at the time). A little sweet and salty goodness to stick to the roof of your mouth.
Grilled Cheese sandwich…mmmmm.
Another peanut butter and banana sandwich on toast. But sliced, not mashed.
Sadly, I no longer have a toaster-oven, but for me it was toasted cheese and bacos on egg bagel. We used to get the bagels from a local bakery that specialized in them, and I’ve never found the like. They were denser than most store-bought ones you find today, and toasted to a wonderful crispness.
Scrambled eggs with pepperoni in them on white toast. Dad would make them for us on Saturdays and at deer camp.
Same here. Artichoke hearts sound good, and sometimes I’ll put onions in it, but most of the time, all I really want is the tuna and mayo. With a couple slices of cheese on top.
Heh, I was just thinking of making a tuna melt today. So like, my favorite childhood sandwich spread with butter and grilled on the stove. Mmmmmmm.