The Subway tuna sandwich may seem like it's complete as listed on the menu; just add your choice of veggies, without making any major changes. If you're a fan of tuna, how can you improve on such ...

These aren't the only times Subway's tuna sandwich has faced scrutiny. In 2021, a California woman sued the chain, claiming that there was no actual tuna fish in their tuna sandwiches.

“Subway delivers 100% cooked tuna to its restaurants, which is mixed with mayonnaise and used in freshly made sandwiches, wraps and salads that are served to and enjoyed by our guests.” ...