Sub Sandwich
A sub sandwich is a long, split roll filled with layers of meat, cheese, and vegetables, usually dressed with oil and vinegar, mayonnaise, or mustard. The name is short for "submarine," a reference to the roll's elongated shape. It grew out of Italian-American delis in early 20th-century port cities, and the same basic sandwich now goes by different names depending on the region: hoagie, hero, grinder, or po'boy.
Varieties
The names change by region even when the sandwich is nearly identical: a hoagie in Philadelphia, a grinder in New England, a hero in New York City, and a po'boy in New Orleans, which is traditionally made on light, airy Louisiana French bread rather than a denser sub roll. A meatball sub or chicken parm sub swaps cold cuts for a hot, sauced filling and needs a sturdier roll to avoid falling apart.
Buying tips
Look for sub rolls with a soft, tearable interior and a crust firm enough to hold fillings without collapsing. At the deli counter, ask for meats sliced thin rather than thick; thin slices layer more evenly and make each bite easier to eat. Choose provolone or mozzarella cut fresh rather than pre-shredded, which is drier.
Substitutes
Baguette, cut to length — 1:1 by length
Crustier and denser than a standard sub roll; works well for cold cuts but slice a thin cap off the top to make room for fillings.
Ciabatta roll, split — 1:1
Softer crumb than a baguette and holds oil-based dressings better without tearing.
French bread loaf, cut into portions — 1:1 by length
The traditional base for a po'boy; has a thin, crackly crust over an airy interior.
Hot dog buns, split open wider — 2 buns : 1 sub roll
Narrower and shorter, so fillings need to be scaled down or the sandwich built on two joined buns.
Large flour tortilla, rolled — 1:1
Turns the sandwich into a wrap; skip the oil and vinegar in favor of a spreadable condiment so it doesn't leak through.
Romaine or butter lettuce leaves — 3-4 leaves : 1 sub roll
A bread-free, low-carb option; layer the leaves to form a sturdy base before adding fillings.
Storage
An assembled sub with lettuce, tomato, and dressing gets soggy within a few hours at room temperature. For same-day eating, wrap tightly in wax paper or foil and refrigerate up to 24 hours. For longer prep, store the roll, meats, cheese, and vegetables separately and assemble just before eating.
How to use
Serve whole for lunch or dinner, or slice into 1 to 2 inch pinwheel pieces for party trays. Meat and cheese fillings can be assembled a day ahead if kept away from watery vegetables; add lettuce, tomato, and dressing right before serving to keep the bread from turning soft.
What it pairs with
Pairs well with kettle chips, a side of pickles or pepperoncini, a small pasta or potato salad, or a cup of soup in cooler months. A vinegar-based slaw is a common side for meatier subs like Italian cold cut or meatball.
Nutrition
Nutrition varies widely by fillings, but a standard 6-inch cold-cut sub typically runs 400 to 600 calories, with cured meats and cheese contributing most of the sodium and saturated fat. Loading up on vegetables adds fiber and volume without much added calories.
FAQ
What's the difference between a sub, a hoagie, and a grinder?
They're the same basic sandwich with regional names. A hoagie is the Philadelphia term, a grinder is used in New England, and a hero is common in New York City; recipes and fillings vary slightly by local tradition but the format is the same long roll with layered fillings.
How do you keep a sub sandwich from getting soggy?
Add a thin layer of cheese or a light coat of mayonnaise directly on the bread before adding wet ingredients like tomato or vinegar dressing, and add lettuce and dressing last, right before eating rather than hours ahead.
Can you freeze a sub sandwich?
Cold cut and cheese fillings on plain bread can be wrapped and frozen for about a month, but skip mayonnaise, lettuce, and tomato before freezing since they turn watery and limp once thawed.
What's the best bread for a sub sandwich?
A roll with a crust firm enough to hold fillings but a soft enough interior to bite through easily, such as a hoagie roll or ciabatta; very hard, crusty breads like a true baguette can tear the roof of the mouth and shred fillings out the sides when bitten.
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