A&W Restaurants • Burgers
A&W Restaurants Mushroom Onion Melt (Single)
One beef patty, Swiss cheese, grilled onions and mushrooms on a toasted bun.
- Price
- $8.99
- Calories
- 400
- Protein
- 22g
- Carbs
- 39g
- Fat
- 18g
Highest of 29 markets; lowest $4.49
$8.99
Prices vary by market, franchise, and ordering platform.
Mushroom Onion Melt (Single) price by location
Official A&W Restaurants ordering prices for this item. A&W Restaurants prices by location, so the price shown above is the highest of these.
| Location | Price |
|---|---|
| Arizona | $7.99 |
| California | $8.99 |
| Colorado | $5.59 |
| Georgia | $4.49 |
| Idaho | $8.74 |
| Illinois | $5.89 |
| Iowa | $5.99 |
| Kansas | $5.89 |
| Kentucky | $5.99 |
| Maryland | $5.69 |
| Michigan | $7.09 |
| Minnesota | $6.99 |
| Missouri | $5.99 |
| Montana | $5.99 |
| Nebraska | $4.99 |
| Nevada | $6.49 |
| New Mexico | $6.19 |
| New York | $7.74 |
| Ohio | $6.49 |
| Oklahoma | $5.19 |
| Oregon | $7.69 |
| Rhode Island | $7.25 |
| South Carolina | $5.69 |
| South Dakota | $6.39 |
| Utah | $8.74 |
| Washington | $7.19 |
| West Virginia | $5.79 |
| Wisconsin | $7.49 |
| Wyoming | $8.74 |
Menu Labeling & Nutrition Information
2,000 calories a day is used for general nutrition advice, but calorie needs vary. Full nutrition information, including saturated fat, trans fat, cholesterol, sodium, sugars, and fiber, is available upon request from the restaurant and in the official nutrition guide. Calorie counts shown are approximate and based on official restaurant nutrition data; values may vary by location, preparation, and portion size.
Everything You Need to Know About the Mushroom Onion Melt (Single)
The Mushroom Onion Melt (Single) is listed in the Burgers section of the A&W Restaurants menu. It comes in at 400 calories with 22g of protein, and is priced at $8.99, about $2.25 per 100 calories. A&W Restaurants is a fast-food chain founded in 1919, known for root beer floats and Papa Burgers, with U.S. locations (many co-branded with KFC).
How the Mushroom Onion Melt (Single) compares to similar A&W Restaurants items
The closest items in the Burgers section, with this item highlighted.
| Mushroom Onion Melt (Single) (this item) | $8.99 | 400 | 2.25 |
| Papa Burger (Double) | $10.59 | 610 | 1.74 |
| Papa Burger (Single) | $8.49 | 430 | 1.97 |
| Spicy Papa Burger (Double) | $10.59 | 610 | 1.74 |
| Spicy Papa Burger (Single) | $8.99 | 430 | 2.09 |
Average price in the Burgers section: $9.28. This item is below the section average.
How the Mushroom Onion Melt (Single) compares at other chains
Compare grilled cheese prices across all chains →| A&W Restaurants | Mushroom Onion Melt (Single) | $8.99 | — |
| In-N-Out | Grilled Cheese | Varies by location | — |
| Taco Bell | Grilled Cheese Burrito | $6.39 | $2.60 more |
| Culver's | Grilled Reuben Melt | $8.99 | same |
| Jack in the Box | Sourdough Breakfast Melt | $4.99 | $4.00 more |
Prices are approximate national averages from our menu tracking data.
Allergen & nutrition guide
View the official A&W Restaurants allergen & nutrition guide
Is the Mushroom Onion Melt (Single) good value at A&W Restaurants?
At $8.99, the Mushroom Onion Melt (Single) costs about $2.25 per 100 calories against a $9.28 average in the Burgers section. Value depends on what you order alongside it. Pair it with the cheapest A&W Restaurants sides for the best total meal cost.
How to order the Mushroom Onion Melt (Single) at A&W Restaurants
The Mushroom Onion Melt (Single) is available at A&W Restaurants locations nationwide: dine-in, takeout, and in most markets delivery through the A&W Restaurants app or third-party services. Order through the official A&W Restaurants ordering page for pickup and delivery. Prices vary by location. Check the current full A&W Restaurants menu for the latest pricing.
More A&W Restaurants menu items
About A&W Restaurants
A&W Restaurants is a fast-food chain founded in 1919, known for root beer floats and Papa Burgers, with U.S. locations (many co-branded with KFC). This A&W menu guide covers 2026 prices, nutrition, and deals.
A&W Restaurants FAQ
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Where does the A&W Restaurants nutrition data come from?
Sources
Verified -1 days agoPrices and customer sentiment sourced from the official A&W Restaurants website, nutrition guide, and public reviews. Source: A&W official online ordering menu, 151 locations in 30 states checked 2026-11-06. Price shown is the highest found; a single store priced far above all others is left out. Nutrition: A&W Restaurants official nutrition, latest published, dated 2026-08-03.