The ‘Shroom Burger Box – 12 Servings is a mouthwatering vegetarian-friendly option featuring crisp-fried portobello mushrooms filled with melted muenster and cheddar cheeses, topped with lettuce, tomato, and ShackSauce, all on a toasted potato bun. No customizations are allowed for this catering-style box.
Allow extra time for prep and packaging. This item is pre-set and non-modifiable.
Price and Calories
Item
Price
Calories (Per Burger)
‘Shroom Burger Box (12 pcs)
$114.99
510 cal
Nutrition Facts (Per Burger)
Nutrient
Amount
Calories
510 cal
Total Fat
32g
Saturated Fat
13g
Trans Fat
0g
Cholesterol
75mg
Sodium
950mg
Total Carbohydrates
30g
Dietary Fiber
2g
Sugars
5g
Protein
17g
Multiply by 12 for approximate full box values.
Allergen Information
Ingredient
Contains
Potato Bun
Wheat, Gluten, Sesame
Portobello Mushroom
None
Cheddar & Muenster Cheese
Dairy
ShackSauce
Egg, Soy
Lettuce, Tomato
None
May contain trace amounts of peanuts, tree nuts, or shellfish due to shared prep surfaces.
Ingredients Breakdown
Crisp-Fried Portobello Mushroom
Melted Muenster and Cheddar Cheese
ShackSauce
Lettuce
Tomato
Toasted Potato Bun
How to Order the ‘Shroom Burger Box (Secret Menu Tips)
Order via app, online, or in-store. This catering option is pre-set and ideal for group vegetarian-friendly meals. Be sure to order ahead for large gatherings.
Can You Customize the ‘Shroom Burger Box?
No, customizations are not available.
Best Toppings for a ‘Shroom Burger Experience
All standard toppings are included. For variety, consider pairing with:
Crispy Onions (if ordered separately)
Cherry Peppers
Extra ShackSauce
When Is It Available?
The ‘Shroom Burger Box is a year-round menu item, available at most locations offering catering or bulk orders.
Is It Vegetarian?
Yes! The ‘Shroom Burger is completely vegetarian.
Best Pairs with Other Shake Shack Menu Items
Menu Item
Price
Calories
Crinkle-Cut Fries
$3.29
470 cal
Cheese Fries
$5.99
710 cal
Shack-made Lemonade
$4.49
160 cal
Organic Apple Juice Drink
$3.99
40 cal
Chicken Bites (6 pc)
$5.99
300 cal
Frozen Custard (Single)
$4.99
280 cal
Shack2O Water
$3.99
0 cal
Vanilla Shake
$6.49
680 cal
FAQs About the Shake Shack ‘Shroom Burger Box (12 Servings)
Frequently Asked Questions
What is included in the ‘Shroom Burger Box?
Twelve ‘Shroom Burgers with portobello mushrooms, cheese, ShackSauce, lettuce, and tomato.
Is it vegetarian?
Yes, it is a 100% vegetarian-friendly option.
How much does it cost?
$114.99 for 12 burgers.
Are modifications allowed?
No, this catering box is fixed and non-customizable.
Is it spicy?
No, it’s savory and cheesy, but not spicy.
Can I get it gluten-free?
No, the bun contains gluten and no substitutions are allowed.
Does it contain dairy?
Yes, it includes both muenster and cheddar cheese.
Is it available for delivery?
Yes, via the Shake Shack app or third-party platforms.
