Every sandwich at Subway is assembled from the same modular set of parts, which means the difference between a forgettable sub and one you think about later is almost entirely down to how you combine them. This is the full parts list, with notes on what each one actually does to the sandwich.

Subway bread types

Bread is baked in-store throughout the day. Availability varies — smaller stores may carry four breads rather than six, and gluten-free is a regional item.

Artisan Italian. Soft, plain white with a thin crisp crust. The most neutral choice and the default on most Subway Series subs.

Italian Herb & Cheese. Artisan Italian topped with oregano, basil and a baked cheese crust. Loud, savoury, and unbeatable toasted — but it fights delicate fillings.

9-Grain Wheat. Lightly sweet, more fibre, holds sauce well. The best everyday option and the one to pick for a leaner sub.

Hearty Multigrain. Denser and seedier than 9-Grain, with real chew. Best with chicken, turkey and avocado builds.

Flatbread. Thin, foldable, and lower volume than a roll. Popular for breakfast and for anyone who finds a sub roll too bready.

Lavash wrap. The large flatbread used for wraps. Holds roughly a Footlong's worth of filling.

Gluten-free bread (select locations). Available in some markets as a pre-packaged roll. Prepared in a shared kitchen, so not coeliac-safe.

The toasting rule: toasting is free and takes seconds. Toast anything with steak, meatballs, chicken or egg. Leave cured meats and fresh mozzarella cold, or toast the bread and cheese first and add the cold meats after — most staff will happily do this if you ask.

Cheese options

American. Melts fastest, mildest flavour. The safe default.

Provolone. Sharper and stretchier. Best on steak and Italian builds.

Monterey Cheddar. Blended shreds, tangy, melts into the filling rather than over it.

Pepper Jack. Real heat plus creaminess. The upgrade on any chicken sub.

Shredded Mozzarella. Mild and stringy — built for the meatball and pizza sub territory.

Fresh Mozzarella. Softer, milky, used on Bella Mozza. Do not over-toast it.

Free vegetables and toppings

These cost nothing, add almost no calories, and you can ask for extra of any of them. The standard US lineup:

  • Lettuce
  • Spinach
  • Tomatoes
  • Cucumbers
  • Green peppers
  • Red onions
  • Black olives
  • Pickles
  • Banana peppers
  • Jalapeños

Avocado, bacon, extra cheese and double meat are paid add-ons rather than free toppings. Finishing seasonings — salt, black pepper and oregano — are free and make an outsized difference on cold subs.

Every Subway sauce

Mayonnaise. Creamy baseline. 110 cal per 6-inch — the single biggest sauce cost.

Yellow mustard. Effectively calorie-free and sharper than people expect.

Deli brown mustard. Earthier, better with ham, roast beef and pastrami-style meats.

Honey mustard. Sweet-tangy; excellent on turkey, dangerous on steak.

Sweet Onion Sauce. Fat-free, syrupy-sweet. The signature on Sweet Onion Chicken Teriyaki.

Baja Chipotle. Smoky, mildly hot, creamy. The most versatile sauce on the line.

Buffalo. Vinegary heat. Pair with ranch or blue-cheese-adjacent builds.

Ranch. Cool and herby, and the reason Chicken & Bacon Ranch sells.

Garlic Aioli. Rich and punchy. Backbone of The Great Garlic.

Chipotle Southwest. Similar to Baja Chipotle with a rounder finish.

MVP Vinaigrette / oil blend. Adds gloss and richness; use sparingly.

Red wine vinegar. Zero calories, transforms cold-cut subs. Massively underused.

Oil & vinegar + oregano, salt, pepper. The classic Italiano finish.

Combinations that regulars swear by

  1. Italian Herb & Cheese + provolone + steak + banana peppers, toasted. The cheese crust and the pepper acid balance each other perfectly.
  2. 9-Grain Wheat + turkey + spinach + cucumber + red wine vinegar + oregano. Under 320 calories and tastes like a deli sub, not a diet.
  3. Hearty Multigrain + chicken + pepper jack + jalapeños + baja chipotle. The best heat-to-flavour ratio on the menu.
  4. Artisan Italian + salami, pepperoni, capicola + oil, vinegar, oregano, cold. The build behind Supreme Meats, and worth ordering as-is.
  5. Flatbread + egg white + spinach + tomato + black pepper, toasted. The quiet best breakfast order — see our breakfast guide.

Three mistakes to stop making

  • Defaulting to mayo. It is the single largest calorie add on the line and usually the least interesting flavour choice.
  • Loading wet vegetables on a cold sub you will eat in four hours. Ask for tomato and pickles on the side if it is going in a bag.
  • Skipping seasonings. Salt, pepper and oregano are free and they are what make a Subway sub taste finished.

Once you know the parts, the numbered board makes a lot more sense — see all 12 Subway Series subs, or check the nutrition guide for what each choice costs you.