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Last updated: Aug 9, 2026
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A&W
Mushroom Onion Melt, Single
Hometown FavoritesPopular
4" High Top Plain Bun Toasted, Burger Patty, Grilled Mushrooms, Grilled Onions, Swiss Cheese Slice, A&W Burger Seasoning
1 Order (170.3g)
Serving Size
170.3 g
Serving Weight
400
Calories
Per serving
22.2 g
Protein
38.5 g
Carbs
18.2 g
Fat
Nutrition Facts
Amount per serving
Calories400 kcal
% Daily Value*
Total Fat 18.2 g23%
Saturated Fat 6.4 g32%
Trans Fat 0.4 g—
Cholesterol 52 mg17%
Sodium 1,562 mg68%
Total Carbohydrate 38.5 g14%
Dietary Fiber 1.4 g5%
Total Sugars 6 g—
Protein 22.2 g44%
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
400
kcal
Protein22.2 g (22%)
Carbs38.5 g (38%)
Fat18.2 g (40%)
Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.
Key Nutrients
Protein 22.2 g44%
Fiber 1.4 g5%
Sodium 1,562 mg68%
Sugars 6 g—
Saturated Fat 6.4 g32%
Ingredients
4" High Top Plain Bun Toasted, Burger Patty, Grilled Mushrooms, Grilled Onions, Swiss Cheese Slice, A&W Burger Seasoning
Allergens
Contains
Milk
May contain
Not listed
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