Mellow Mushroom pizza is not built around one standard pepperoni-and-cheese formula. The menu includes meat-heavy pies, vegetable-forward combinations, pesto-based pizzas, BBQ chicken recipes, vegan versions, gluten-free options, and fully customized pizzas.
That variety makes the exact pizza, serving size, and number of slices particularly important when checking nutrition.
Use the Mellow Mushroom Nutrition Calculator above to compare individual pizza slices, specialty pies, toppings, wings, calzones, hoagies, salads, Munchies, dips, desserts, and other menu items.
At Mellow Mushroom, the Pizza Name Matters
Two slices from the same restaurant can have very different nutrition even when their size looks similar.
Consider some current NutritionSolver examples:
Mighty Meaty, Large Slice: about 530 calories and 28g protein
Holy Shiitake, Large Slice: about 530 calories and 20g protein
Kosmic Karma, Large Slice: about 490 calories and 22g protein
Veg Out, Large Slice: about 430 calories and 21g protein
The calorie number alone does not tell you what creates the total.
Mighty Meaty gets much of its profile from several meat toppings. Holy Shiitake combines mushrooms, cheeses, garlic, herbs, and other rich ingredients. Kosmic Karma and Veg Out use different vegetable, cheese, sauce, and pesto combinations.
Choose the actual specialty pizza rather than using a generic Mellow Mushroom pizza estimate.
One Slice Needs a Size Label
Mellow Mushroom nutrition is especially easy to misread if a result simply says “one slice.”
The current nutrition database separates many specialty pies into:
Small Slice
Medium Slice
Large Slice
and, for supported pizzas:
Gluten-Free Slice
These serving definitions are important because a slice from one pizza size is not automatically equivalent to a slice from another.
For example, the current Mighty Meaty entries are approximately:
Small Slice: 430 calories
Medium Slice: 380 calories
Large Slice: 530 calories
This also shows why you should not assume that a slice from the smaller pizza will always contain fewer calories than every slice from the next size. The way the pizza is portioned matters.
Always calculate:
Exact pizza + exact size + number of slices eaten
Specialty Pies Should Stay Separate From Build Your Own
Mellow Mushroom's specialty pizza menu includes combinations such as:
Super Pepp
Great White
Holy Shiitake
Pacific Rim
Mighty Meaty
Veg Out
Buffalo Chicken
Funky Q Chicken
Kosmic Karma
House Special
and Maui Wowie .
These are defined recipes.
If you order one without major changes, its complete slice nutrition is more useful than rebuilding every topping manually.
Build Your Own pizza should work differently. There, the calculator should begin with the pizza base and add the exact cheese, meats, vegetables, sauces, and other toppings selected.
Super Pepp Is More Than a Standard Pepperoni Slice
Super Pepp uses a more pepperoni-focused preparation than a basic cheese pizza with a small pepperoni addition.
The current NutritionSolver database lists approximately:
Small Slice: 440 calories
Medium Slice: 400 calories
Large Slice: 550 calories
with the Large Slice providing around 23g of protein.
If a user searches specifically for Mellow Mushroom Super Pepp calories , the calculator should return the specialty pizza rather than a generic pepperoni topping calculation.
Mighty Meaty Changes Both Protein and Sodium
Mighty Meaty combines several meat toppings, making it one of the more protein-dense specialty choices.
The current Large Slice contains approximately:
530 calories
28g protein
61g carbohydrates
20g fat
1,370mg sodium
That is a useful example of why high protein should be viewed alongside sodium, saturated fat, and total calories.
One nutrient should not be used to describe the complete pizza.
Holy Shiitake Has a Different Kind of Calorie Density
Holy Shiitake illustrates the opposite side of the menu.
It is not built around several meat toppings, yet the cheeses, mushrooms, sauce, and other rich ingredients still produce a substantial slice.
The current Large Slice is about 530 calories , while the Medium is around 380 calories .
This is why vegetarian does not automatically mean low calorie.
Dietary style and calorie content answer different questions.
Half & Half Pizza Needs Two Nutrition Profiles
Mellow Mushroom currently allows a Half & Half Pie.
That creates a calculator situation that a flat pizza table cannot handle well.
If one half is Mighty Meaty and the other half is Veg Out, the whole pizza does not have one uniform per-slice nutrition value.
A stronger calculation is:
Pizza size → first-half recipe → second-half recipe → slices eaten from each half
That produces a more meaningful result for mixed specialty orders.
Build Your Own Pizza Should Start With the Pizza Size
For a custom pie, calculate in this order:
Pizza size
then:
Sauce
Cheese
Meat or plant-based protein
Vegetables
Additional toppings
and finally:
Slices eaten
Mellow Mushroom offers a large range of cheeses, vegetables, meats, and other pizza components.
Using ingredient-level entries is especially useful when someone orders extra cheese, multiple meats, additional vegetables, or a combination that does not match a specialty pizza.
Gluten-Free Pizza Needs Its Own Serving
Mellow Mushroom currently offers a 10-inch Signature Gluten-Free Crust .
Select specialty pizzas are also available as dedicated gluten-free versions, including choices such as House Special, Kosmic Karma, Mighty Meaty, and Veg Out.
These recipes have separate nutrition values because the crust and serving format differ from the regular pizza.
For example, the current NutritionSolver Mighty Meaty Gluten-Free Slice contains approximately 290 calories , compared with about 530 calories for the Large regular slice.
Do not estimate gluten-free pizza by simply subtracting part of a regular crust.
Use the dedicated serving whenever available.
Vegan Pizza Should Also Be Treated as Its Own Recipe
The current menu includes Vegan Build Your Own Pizza and vegan versions of several menu items.
Replacing dairy cheese or meat with plant-based ingredients changes the nutritional composition, but vegan does not automatically mean lower in calories.
The exact crust, cheese alternative, toppings, sauces, and portion still determine the final result.
Vegan pizza should therefore have its own ingredient and recipe records rather than borrowing the standard pizza nutrition.
Calzones Are Complete Entrées
Mellow Mushroom calzones contain a substantial amount of dough and cheese, so they should not be treated like one folded pizza slice.
The current NutritionSolver database lists:
Build Your Own Calzone: about 1,530 calories
Steak and Cheese Calzone: about 1,820 calories
The standard Build Your Own Calzone also contains around 69g of protein and 206g of carbohydrates in the current data.
For a customized calzone, toppings should be added to the correct calzone base rather than using pizza-slice portions.
Mellow Rollz Have Half and Whole Portions
Mellow Rollz are another serving type unique enough to deserve their own calculation.
Current NutritionSolver values include approximately:
Mellow Rollz, Half: 760 calories
Mellow Rollz, Whole: 1,520 calories
Pepperoni Mellow Rollz, Half: 870 calories
Pepperoni Mellow Rollz, Whole: 1,760 calories
Always select the actual portion.
A Whole order should not accidentally be displayed using the Half serving.
Munchies Can Be Designed for Sharing
Mellow Mushroom's appetizer section includes foods such as Pretzel Bites, Cheese Bread, Spinach Artichoke Dip, meatballs, and Mellow Rollz.
Several of these can contain enough food for more than one person.
For example, the current Pretzel Bites with Beer Cheese entry is approximately 1,240 calories for the listed order.
If a table shares the appetizer, calculate the approximate portion you personally eat rather than assigning the entire serving to one person.
Dipping Sauce Belongs With Wings
Mellow Mushroom currently offers both traditional and boneless wings in different quantities.
For boneless wings, the current base nutrition includes approximately:
5 Count: 330 calories and 22g protein
10 Count: 670 calories and 45g protein
before accounting for all possible flavor and dipping combinations.
Wing flavor and dipping sauce can alter calories, carbs, fat, sugar, and sodium.
A useful wing calculation therefore needs:
Wing type + piece count + flavor + dip
Salad Dressing Can Change a Salad Considerably
Mellow Mushroom's current menu includes several salads, including newer recipes as well as half-portion options.
The salad base, cheese, nuts, fruit, protein, crispy toppings, and dressing can all contribute to the final total.
A Half Salad should not inherit the nutrition of the full serving.
If dressing is stored separately, add the exact dressing and serving you use.
Hoagies Need Half and Whole Portions
Mellow Mushroom also serves hoagies such as Italian, Steak & Cheese, Avocado, Tempeh, Meatball, and California Club.
Serving size matters here too.
Where Half and Whole versions exist, they should remain separate nutrition records.
The current NutritionSolver Steak and Cheese Hoagie Whole entry, for example, is approximately 1,860 calories and 69g protein .
A half sandwich and full sandwich should never share that value.
Pizza Is Only Part of the Current Mellow Mushroom Menu
A complete nutrition calculator should also account for foods outside pizza, including:
Munchies
Traditional and boneless wings
Salads
Burgers and hoagies
Calzones
Kids meals
Vegan items
Certified gluten-free items
Desserts
Drinks
Sides and sauces
If someone orders pizza plus wings and Ranch, all three components belong in the meal total.
Mellow Mushroom Nutrition Questions
How many calories are in a slice of Mellow Mushroom pizza?+
How many calories are in a Mighty Meaty slice?+
How many calories are in Holy Shiitake pizza?+
Does Mellow Mushroom have gluten-free pizza?+
Does Mellow Mushroom have vegan pizza?+
How should I calculate a Half & Half pizza?+
Are Mellow Mushroom wing sauces included in wing calories?+
Calculate the Mellow Mushroom Order You Actually Eat
For pizza, begin with the exact specialty recipe or Build Your Own pizza, size, crust, and number of slices .
For customized pizzas, account for the actual cheese, meats, vegetables, and other toppings .
Then add any Munchies, wings, dipping sauces, salad dressing, hoagie, calzone, drink, or dessert that is part of the order.
That gives you a much more useful Mellow Mushroom nutrition total than relying on one average number for “pizza.”