I wouldn't purposely make a sandwich from pasta and bread, but I've been known to scoop fresh crusty garlic bread in warmed leftover spaghetti like it was a dip and enjoy the heck out of it, healthy or not.
Craving incredibly starchy foods is a sign of depression. Has to do with serotonin levels.
I had a rough patch and used to crave mashed potato sarmies.
Anyways, I agree with roadfix, I don't mix carbs with carbs, although people told me a Mac N Cheese burger is as "good as sin." But I've never tried it.
Ive seen Pizza made with Zitta on top ( or other kind of pasta). Never had it, but Im sure its good. Thats probably the closest I'd get to a pasta sandwich. When Eating pasta, I prefer my bread on the side to mop up the sauce.
When I was growing up, the closest we came to a carb on carb sandwich, was baked beans on bread. Somehow, those tasted good if we were hungry enough. Once we were momentarily rich, we'd put some cheese on it.