Culver's Mushroom & Swiss ButterBurger: nutrition and allergens
Culver's lists the Mushroom & Swiss ButterBurger in 3 sizes, from 530 calories (Single) to 1,030 calories (Triple). The Single has 28 g fat, 41 g carbohydrate, 27 g protein and 650 mg sodium.
Nutrition facts
| Per serving | Single | Double | Triple |
|---|---|---|---|
| Calories | 530 | 780 | 1,030 |
| Total fat (g) | 28 36% | 47 60% | 66 85% |
| Saturated fat (g) | 12 60% | 20 100% | 29 145% |
| Trans fat (g) | 0.5 | 1.5 | 2 |
| Cholesterol (mg) | 75 25% | 145 48% | 215 72% |
| Sodium (mg) | 650 28% | 790 34% | 930 40% |
| Total carbohydrate (g) | 41 15% | 42 15% | 43 16% |
| Dietary fiber (g) | 2 7% | 2 7% | 2 7% |
| Total sugars (g) | 6 | 6 | 6 |
| Protein (g) | 27 54% | 47 94% | 67 134% |
Percentages are the share of the FDA Daily Value for adults and children 4 and over, worked out from Culver's published amounts (how % Daily Value works). A dash means Culver's does not publish that value for this size. Not published for this item: added sugars.
Using the FDA’s rule of thumb that 5% of the Daily Value or less per serving is low and 20% or more is high, the Single size is high in saturated fat (60%), protein (54%), fat (36%), sodium (28%) and cholesterol (25%). Add it up with other items in the Culver's nutrition calculator.
Values are for the standard build in Culver's guide: Lightly Toasted Buttered Bun, Culver's Ground Beef Patty, Sauteed Mushrooms, Swiss Cheese Slice.
Allergens
According to Culver's, the Mushroom & Swiss ButterBurger contains milk, wheat, soy, sesame and gluten.
| Milk | Contains |
|---|---|
| Egg | Not listed |
| Fish | Not listed |
| Crustacean shellfish | Not listed |
| Tree nuts | Not listed |
| Peanuts | Not listed |
| Wheat | Contains |
| Soy | Contains |
| Sesame | Contains |
| Gluten | Contains |
Culver's says its allergen information reflects standard recipes and supplier data, which can change, and that cross-contact between ingredients and menu items, including allergens, can happen in its busy kitchens. Guests with food allergies should tell the restaurant manager when ordering and can ask to see ingredient listings. Fried items share fryer oil and beef is cooked on the same grill where bread is toasted; Culver's printed guide marks the allergens fried items may pick up in the fryer, shown here as "may contain". Culver's does not certify any item as vegetarian and accepts no responsibility for individual allergies or sensitivities.
Other items in ButterBurgers at Culver's
By calories (Single), the Mushroom & Swiss ButterBurger ranks 5 of 8 in Culver's ButterBurgers section, from lowest to highest.
| Item | Calories |
|---|---|
| ButterBurgerSingle | 390 |
| ButterBurger CheeseSingle | 460 |
| Wisconsin Swiss MeltSingle | 480 |
| Sourdough MeltSingle | 490 |
| Mushroom & Swiss ButterBurgerSingle | 530 |
| The Culver's DeluxeSingle | 580 |
| The Culver's Bacon DeluxeSingle | 670 |
| Smoked Cheddar CurderBurger | 890 |
Nutrition for all 8 items in ButterBurgers at Culver's
Browse the Culver's menu by goal: high-protein items · low-calorie items
Sources
- 1 Culver's, Culver's Nutrition & Allergen Guide (served by Nutritionix, linked from culvers.com) Covers nutrition, allergens, ingredients and menu · Menu last updated 2026-09-28 · Checked 8 Oct 2026
- 2 Culver's, Culver's Nutrition & Allergen Guide, printable PDF (fryer cross-contact marks) Covers allergens · 7/2025 · Checked 8 Oct 2026
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