Fancy a Fishwich?
Most people either love or hate tuna salad. I'm in the love camp, and I think it's a critically overlooked sandwich filling, especially at sub shops. When deli turkey and salami get boring, tuna will always be there to shake up your lunch routine.
It's been years since I've ordered a tuna sub at a sandwich chain, though, mostly because I make my own at home. So I went to six big sub chains near me and ordered tuna subs with cheese, lettuce, tomato, onions, cucumbers, and pickles (if available) on plain white or Italian bread, with a few slight variations.
I found that two were downright delicious, two were mediocre, and two I'm never going to waste my money on again.
Prices and availability are subject to change.