If You Usually Order:
A classic tuna sandwich with Cheddar cheese and potato chips.
Make It Healthier:
Get a wheat roll, and add extra vegetables. If you can't omit the cheese, know that American cheese is the lowest-fat option, followed by provolone, with Swiss and Cheddar tied for last. Choose baked chips.
Subway's tuna salad contains lots of mayonnaise, so a less cholesterol-raising option would be the Veggie Delite or Turkey-Breast Sandwich from the "6 Grams of Fat or Less" side of the menu.