Breakfast On A Bun: $4.69, 525 Calories (2026)

What comes on a Breakfast On A Bun

Breakfast On A Bun is one of Whataburger's oldest morning items; it was added in 1983, the same year as the breakfast taquitos (company history on Wikipedia). The San Antonio online menu we read shows the name and calories but not the parts, so the build below comes from the delivery-app listing, which copies Whataburger's item text:

• Small 4-inch bun, the same bun used on Jr. burgers (170 cal on its own).
• Sausage patty (bacon is the other common choice).
• One egg.
• One slice of American cheese (about 45 cal).

It is the closest thing Whataburger has to a classic breakfast sandwich on a soft bun instead of a biscuit.

Price: sandwich vs Whatameal

At Store #367 (West & San Angelo, San Antonio, TX) on Nov 3, 2026, Breakfast On A Bun cost $4.69 and the Whatameal cost $6.99, so hash brown sticks and a drink add $2.30.

The delivery-app price ran about 29% higher for the sandwich and 31% higher for the meal. See store vs delivery prices for why.

Calories and nutrition

Whataburger now shows 525 calories for Breakfast On A Bun, and 720 for the Whatameal. Old nutrition charts list a far lower number from an earlier recipe, which is why you see different answers online.

Full macros for the current version are not published, so we list calories only. For comparison:

Allergens

Whataburger's allergen data for Breakfast On A Bun was blank when we checked. Going by its parts, expect egg, milk (cheese), and wheat and gluten (bun); the Egg Sandwich, a similar item, lists egg, gluten, milk, soy and wheat.

allergen menu before ordering for an allergy. Shared grills mean cross-contact is possible.

Ways to change it

• Bacon instead of sausage: both meats show up on the Whataburger breakfast build.
• Add jalapeños: $0.70 on the regular menu add-on list.
• Add a sauce: creamy pepper, the sauce on the Breakfast Burger, is a popular ask.
• Hold the cheese or egg to cut calories.

Like every item on the breakfast menu, it is served 11 pm to 11 am only; see breakfast hours.

How it compares

Breakfast On A Bun is cheaper than the Breakfast Burger ($5.99) and has 180 fewer calories, but no beef patty or hash browns inside. Against the Biscuit Sandwich it saves $0.10 and 180 calories, since the bun is lighter than a biscuit.