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Last updated: Aug 9, 2026

Whataburger

Jr. Mushroom Swiss Burger

Junior All-Time Favorites & Seasonal SandwichesPopular

Whataburger Jr. Mushroom Swiss Burger is fat-leaning, with about 54% of macro calories from fat. Each serving has 700 calories, 32g protein, 47g carbs, and 42g fat, making it a stronger fit for high-protein restaurant planning.

1 Serving

Serving Size

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700

Calories

Per serving

32 g

Protein

47 g

Carbs

42 g

Fat

Nutrition Facts

Amount per serving

Calories700 kcal

% Daily Value*

Total Fat 42 g54%

Saturated Fat 14 g70%

Trans Fat 1 g—

Cholesterol 85 mg28%

Sodium 1,380 mg60%

Total Carbohydrate 47 g17%

Dietary Fiber 3 g11%

Total Sugars 11 g—

Protein 32 g64%

Vitamin A—

Vitamin C—

Vitamin D—

Calcium—

Iron—

Potassium—

Caffeine—

* The % Daily Value tells you how much a nutrient in a serving contributes to a daily diet.

Nutrition Breakdown

700

kcal

Protein32 g (18%)

Carbs47 g (27%)

Fat42 g (54%)

Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.

Meal Planning Insights

Protein density4.6/10

18% of macro calories come from protein.

Satiety index10/10

Estimated from protein, fiber, calories, and fat balance.

Activity estimate175 min walk

About 70 minutes of running for these calories.

Key Nutrients

Protein 32 g64%

Fiber 3 g11%

Sodium 1,380 mg60%

Sugars 11 g—

Saturated Fat 14 g70%

How we calculate these values

Diet Compatibility

High protein4.6/10 protein density from 32g protein and 700 calories.No

Lower carb47g carbs per serving.No

Low fat42g total fat per serving.No

High sugar11g total sugars per serving.No

High sodium1,380mg sodium per serving.Yes

Vegetarian source flagNo vegetarian flag is published for this item.Not flagged

Compare with other items

Select up to 3 items to compare calories, protein, sodium, and macros.

Quick comparisons

Jr. Mushroom Swiss Burger has 300 more calories than # 20 Taquito with Cheese & Bacon and 12g more protein. Compare

Jr. Mushroom Swiss Burger has 250 more calories than # 20 Taquito with Cheese & Chorizo and 13g more protein. Compare

# 20 Taquito with Cheese & Bacon400 kcal · 20 g protein# 20 Taquito with Cheese & Chorizo450 kcal · 19 g protein# 20 Taquito with Cheese & Potato440 kcal · 17 g protein# 20 Taquito with Cheese & Sausage420 kcal · 19 g protein# 21 Breakfast On A Bun with Bacon360 kcal · 18 g protein# 21 Breakfast On A Bun with Sausage510 kcal · 27 g protein

Compare with # 20 Taquito with Cheese & Bacon

Jr. Mushroom Swiss Burger Compared With Nearby Items

Whataburger Jr. Mushroom Swiss Burger is listed in the Junior All-Time Favorites & Seasonal Sandwiches category with 700 calories, 32g protein, 47g carbs, and 42g fat per serving.

Data Source and Methodology

Nutrition values for Jr. Mushroom Swiss Burger are maintained in Nutrimetry from restaurant-published menu data and were last checked on Aug 9, 2026. Macro percentages use 4 calories per gram for protein and carbohydrates and 9 calories per gram for fat.

Read the data methodology

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