Top tuna with cheese, packing it on generously, and slide sandwiches under broiler. Broil until cheese melts and bubbles, 4-5 minutes. Remove tuna melts from broiler and serve immediately.
If you're not a fan of tuna, use tinned salmon instead. If you're making this with kids, tins that have ring pulls may be easier for them to open. The lid of a tin is very sharp, so watch those ...
Surprisingly, old stand-bys, like packaged deli meat sandwiches featuring bologna (including the Southern fried version), didn't make the cut. If the tuna eaters of America align with the survey's ...