OK, after Steve's post on Ollieburger, I am going to let you in on one of my guilty pleasures: sausage and cheese sub at the Broiler on Columbia Pike in Arlington. The place has been there since the 50's and has never branched out to my knowledge.
They make their own sausage--or at least used to--and it is pretty spicy. It's what I call a three-tissue meal, and I won't explain further in the interest of delicacy. It comes with lettuce, tomato, and mayo, making it a nice, sloppy mess. The bun is soft, and the cheese kind of seals it shut, but after a few bites, it is drippy. Comes in 6 in and 12 in sizes (no discount for the 12 inch), and a 6 is more than enough, particularly if you get fries.
The fries are not really special, as they are simply the frozen crinkle-cut ones. But they typically don't cook them until you order, and so they are generally perfectly acceptable. Last night's were crispy on the outside and soft on the inside (eat your heart out, John B!). Sometimes, though, they are limp.
They also have steak and cheese, but I find them boring in comparison and so very rarely have gotten that.
They also have pizza, which is the square, thin, kind of crispy crust style that should be known as "Arlington Style" pizza, since it is prevalent among the 50's hold-overs around here such as Mario's and Pizza Pantry just a few blocks away. I've had it, but it's been ages and so won't comment or compare it to those others, which have their devotees.