Sandwich? A crust of bread and a hunk of cheese makes me happy. A crust of bread, a hunk of cheese, and a stick of pepperoni and it’ll be christmas in my mouth.
Peanut butter and bacon on soft whole wheat bread.
In winter, cheese and mayo with a little rough brown mustard.
In summer, tomato picked the same day and mayo on farmer’s market sourdough baked that morning. I love it so much, I took a picture and posted it on facebook last summer. Little sprinkle of sea salt and pepper, too.
Peanut butter & banana.
Some of you folks are making things too complicated.
Peanut butter
There’s really no need for anything to go with it.
I prefer my peanut butter with pickles.
I also love cream cheese and olive sandwiches.
I can’t quite convince myself that it has anything going for it except flavor.
That’s how I eat bagels. (Which are, I guess, sandwiches.)
Peanut butter and veggie bacon.
Laughing Cow Cheese and cucumbers or olives.
BLT w/veggie bacon.
I’ve been taking some simple sandwiches in to work lunch. One is just maple leaf mock chicken and bread. Don’t need anything else for a tasty sandwich. (Well, except for pringles, which are a great side for any sandwich really 
)
My tuna fish sandwiches are more than three ingredients: solid white clover leaf tuna, half a teaspoon worth of miracle whip per can, (and a can makes three sandwiches.) Some spices to taste: onion powder, mrs dash, sprinkle of thyme or oregano, that kind of thing. Bread very lightly spread with margarine.
And don’t forget the pringles. 
Actually, I forgot the pringles today 
Peanut butter and mayo on white. Heaven on a plate.
Bacon on toasted sourdough, buttered.
Peanut butter and Nutella.
Oh, oh, I’m going to change my answer to yours. Fresh picked garden tomatoes, with mayo (preferably homemade, but not 100% necessary), salt, pepper, on fresh toasted baked bread. Open-faced. That’s the ultimate. Hell, I’ll even take that on toasted Wonder Bread. Few things I eat make me happier than that.
Too complicated.
Butter. On one slice. Fold it over.
Equal parts liverwurst and onion with mustard on whole wheat.
There’s a tiny farmer’s market that operates within almost-spitting distance from me on Monday afternoons in the summer. It’s run by Loyola Ag students, and their tent features stuff from their farm, including a student bakery with cookies and bread they baked that morning. A loaf their sourdough and some gorgeous tomatoes and I’m set for breakfast for the week. It’s breakfast all summer. Nom.
Pleeze tell me this is made on Wonder Bread.
For me, four slices of beef baloney, plus a nice layer Hellmann’s Real Mayonnaise (Best Foods west of the Rockies). On generic white bread.
Heh. And for my brother, biting is an unnecessary complication. He would make that and shove the whole thing in his mouth at once.
Obviously it should be. But truth be known, I’m more likely to put it on a bagel.
Not technically a sandwich, but when I’m really tired after work, I’ll just grab a boule, some kinda ham - usually cheap parma, so I can have a lot of it and really pig out - and a thing of arugula from the deli and just pick at each of them in turns while I watch TV at home. It’s heaven.