#1 Whataburger: $5.99, 590 Calories (2026)

What comes on a #1 Whataburger

The #1 is the burger the chain is named after. Whataburger's own build lists seven parts: a large 5-inch bun, one large 5-inch beef patty, tomato, lettuce, pickles, diced onions and mustard. There is no cheese, no ketchup and no mayonnaise unless you ask for them.

• Bun: the large 5-inch bun is 310 calories on its own. You can swap it for a potato bun (240 cal), Texas toast (230 cal), a small bun or no bun at all at no charge.
• Patty: one large beef patty, about 243 calories. The online menu lists three of them at 730 calories.
• Toppings: tomato (10 cal), diced onions (10 cal), lettuce and pickles (0 cal each).
• Sauce: yellow mustard (15 cal). Mustard as the default is a Whataburger habit; here is why.

The original 1950 Whataburger, sold for 25 cents in Corpus Christi, had a quarter-pound patty, lettuce, three slices of tomato, four pickles, chopped onion, ketchup and mustard. Ketchup was later dropped, which is why today's #1 comes with mustard only (company history as summarized on Wikipedia's Whataburger article).

#1 Whataburger price: sandwich vs Whatameal

At Store #608 (Dallas Pkwy & Frankford, Dallas, TX) on Nov 3, 2026, the sandwich cost $5.99 and the Whatameal cost $9.59. The meal adds medium fries and a medium drink for $3.60 more.

Your store may be a few cents different, and delivery apps charge more: the same sandwich was $7.43 on a delivery-app price list, about 24% higher. The full comparison is in store vs delivery prices.

Calories and nutrition

A #1 Whataburger has 590 calories, 29 g of protein, 25 g of fat (8 g saturated, 1 g trans), 62 g of carbohydrates, 12 g of sugar and 1,220 mg of sodium. More than half of the calories come from the bun and the patty; the vegetables and mustard add very little.

To cut calories, a Whataburger Jr. is 310, and dropping the bun removes 310 calories (No Bun is a free option in online ordering; see keto and lettuce-wrapped orders).

Allergens in a #1

Whataburger's allergen information lists wheat, gluten and soy for the #1 (from the bun). Egg, milk, fish, peanuts, tree nuts and shellfish are not listed as ingredients. Mustard and sesame are listed as "not stated", so ask at the counter if those matter to you.

Kitchens share grills, fryers and prep tables, so no item is certain to be free of any allergen. The full chart is on the allergen menu.

Popular ways to change it

Every Whataburger is made to order, so changes are normal. The prices below are add-on charges from the Dallas store's online menu:

• Add bacon: $1.80, or order the #5 Bacon & Cheese Whataburger at $7.39.
• Add jalapeños: $0.70, or order the #4 Jalapeño & Cheese Whataburger at $6.69.
• Add avocado: $1.35; aged cheddar $0.80; jalapeño cream cheese $0.90.
• Free swaps: ketchup or mayonnaise instead of mustard, grilled onions instead of diced, toasted both sides, a potato bun or Texas toast.

Fan-favorite orders and off-menu combinations are collected in the secret menu guide, and every add-on price is in add-on prices.

#1 vs the other numbers

The #1 sits in the middle of the burger line. The #7 Whataburger Jr. is the same build on a 4-inch bun for $3.99 and 310 calories. The #2 Double Meat adds a second patty for $7.19. If you want cheese, the #4 and #5 include it. All numbered meals are explained in Whataburger menu numbers, and every burger is on the burger menu.