Whataburger Mushroom Swiss Burger 2026: Price, Calories & Full Review
The Whataburger Mushroom Swiss Burger is one of the most calorie-dense specialty burgers on the 2026 menu — 1,110 calories, 55g protein, and a rich combination of sautéed mushrooms, Swiss cheese, and a juicy beef patty on Whataburger's signature 5-inch bun. If you're a mushroom Swiss burger fan, this is Whataburger's best answer. Here's everything you need to know: price, calories, what's in it, and how it compares to similar burgers.
Whataburger Mushroom Swiss Burger — Price & Calories 2026
At $8.49, the Mushroom Swiss Burger is one of the pricier items on the menu, but the calorie-to-price ratio makes it genuinely filling. The 55g protein count is among the highest in the lineup, second only to the Triple Meat Whataburger® (65g protein at $8.69). This is a burger designed for serious appetites.
What's in the Whataburger Mushroom Swiss Burger?
The Mushroom Swiss Burger features a generous stack of ingredients that earns its 1,110-calorie count:
- Beef patty — Whataburger's signature 100% pure beef, never frozen
- Sautéed mushrooms — Earthy, tender cremini-style mushrooms cooked down in butter
- Swiss cheese — Two slices of melted Swiss for a nutty, mild flavor
- Creamy mushroom sauce — Rich sauce that ties the mushroom flavor together
- Lettuce and tomato — Fresh toppings for balance
- Toasted bun — Whataburger's large 5-inch bun, lightly toasted
The 69 grams of fat come primarily from the beef, Swiss cheese, butter-sautéed mushrooms, and the creamy sauce. This is unambiguously an indulgent burger — not a low-calorie choice — but it delivers on flavor in every bite.
Mushroom Swiss Burger vs. Other Whataburger Specialty Burgers
The Mushroom Swiss Burger and Sweet & Spicy Bacon Burger are priced identically at $8.49 but offer different flavor profiles. The Mushroom Swiss is earthier and richer; the Sweet & Spicy is bolder with more heat. If you prefer sweet-savory-spicy combinations, check our Sweet & Spicy Bacon Burger guide. For a lower-calorie specialty, the Avocado Bacon Burger at $7.99 (815 cal) is the better pick.
How to Order the Mushroom Swiss Burger at Whataburger
Whataburger's full customization system applies to the Mushroom Swiss Burger. Here are popular modifications:
- Add jalapeños: Free upgrade for heat lovers. The earthy mushroom Swiss pairs surprisingly well with jalapeño heat.
- Double meat: Add a second beef patty (upcharge applies) for an even higher-protein version
- No sauce: Skip the creamy mushroom sauce to cut ~80–100 calories
- Add extra mushrooms: Ask for extra sautéed mushrooms at the counter — free or small upcharge depending on location
- Swap bun: Ask for a lettuce wrap to cut carbs significantly (drops to roughly 550 cal)
Is the Mushroom Swiss Burger Worth It?
At $8.49, the Mushroom Swiss Burger is one of the more premium-priced items on the menu. Here's the value assessment:
- Calorie density: 1,110 calories is a full meal's worth — you likely won't need sides
- Protein per dollar: 55g protein ÷ $8.49 = 6.5g protein per dollar (solid value)
- Comparison: A comparable mushroom Swiss burger at a sit-down restaurant costs $14–$18
- Satisfaction: The sautéed mushrooms and Swiss cheese combination is genuinely different from any other Whataburger offering
Verdict: Worth it if you want something more elevated than the standard lineup. Skip it if you're calorie-conscious — the healthy options guide has better choices at half the calories.
Frequently Asked Questions — Whataburger Mushroom Swiss 2026
How much is the Mushroom Swiss Burger at Whataburger?
The Whataburger Mushroom Swiss Burger is $8.49 in 2026. It contains 1,110 calories, 55g protein, 59g carbs, and 69g fat.
How many calories in the Whataburger Mushroom Swiss Burger?
The Mushroom Swiss Burger contains 1,110 calories — the highest-calorie burger on the Whataburger menu. It also contains 55g protein, making it the most calorie-dense but also a high-protein option.
Is the Mushroom Swiss Burger available all day?
Yes. The Mushroom Swiss Burger is available during regular menu hours (11 AM onward at most locations). It is not available during the breakfast period (11 PM – 11 AM).
What's the difference between Mushroom Swiss and the regular Whataburger?
The classic Whataburger® ($5.99, 590 cal) features the standard toppings: lettuce, tomato, pickles, onion, mustard. The Mushroom Swiss ($8.49, 1,110 cal) adds sautéed mushrooms, Swiss cheese, and creamy mushroom sauce — nearly doubling the calorie count for a richer, earthier flavor profile.
