I just call them Swedish Open Sandwich.
Had some yesterday. After a night of noodles and fried rice. Having some today, using what is left over.
A Typical Smerderbrerder (?) for me is two slices of fresh bread drizzled with French dressing. Topped with salad stuff, some wafer-thin meats, maybe beetroot, maybe pate, maybe cheese, maybe halved 7 minute boiled egg, maybe apple slices, maybe gherkins, maybe tinned tuna (the ONLY seafood I eat) and Always Black Olives.
Yum.
Knives and forks essential – or just get messy :o)