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Starbucks US Egg, Pesto & Mozzarella Sandwich: calories and sugar by portion, age and sex

Starbucks US Egg, Pesto & Mozzarella Sandwich, cheddar onion bun with egg frittata, pesto and melted mozzarella, nutrition and calories

Boone’s analysis puts Starbucks US Egg, Pesto & Mozzarella Sandwich at 20% of an adult’s daily calories, 0.2 teaspoons of added sugar and 790mg of sodium.

How many calories are in a Starbucks US Egg, Pesto & Mozzarella Sandwich? It contains 390 calories, 16g of fat (6g saturated), an estimated 1g of added sugar and 790mg of sodium.

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Use the Boone meal calculator to see this item alongside the rest of your order rather than on its own. Choose your age and sex, and switch between US and UK guidance, for a more accurate view of how an Egg, Pesto & Mozzarella Sandwich fits into a day.

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Nutrition information

Nutrition information: Starbucks US Egg, Pesto & Mozzarella Sandwich

Serving size146g
Calories390
Total fat16g
of which saturated6g
Trans fat0g
Carbohydrate36g
Total sugars1g
Includes added sugars (Boone estimate)1g
Fibre2g
Protein21g
Sodium790mg

Nutrition figures are Starbucks US published data for one standard serving as sold. Starbucks publishes total sugar only, so added sugar is a Boone estimate. Boone converts the figures to the portion and age comparisons on this page.

Starbucks US Egg, Pesto & Mozzarella Sandwich contains 390 calories, which is 20% of the 2,000-calorie Daily Value used on US food labels. It provides 16g of total fat, of which 6g is saturated, 1g of total sugars (an estimated 1g added), 790mg of sodium, 21g of protein and 2g of fibre.

The saturated fat content of 6g represents 30% of the 20g Daily Value.

Starbucks US Egg, Pesto & Mozzarella Sandwich is built from 4 separately manufactured components. The egg frittata patty alone carries 5 different classes of additive. Across the whole item the ingredient list names maltodextrin, thickeners and gums, flavourings, preservatives, acidity regulators and protein isolates. None of these add nutritional value. They exist to make food survive industrial production, storage and transport.

Starbucks US Egg, Pesto & Mozzarella Sandwich is high in sodium

Starbucks US Egg, Pesto & Mozzarella Sandwich contains 790mg of sodium, 34% of the 2,300mg adult daily limit and 53% of the 1,500mg limit for a child aged 4 to 8. The FDA treats 20% of the Daily Value or more in one serving as high.

FDA Daily Values (2,000-calorie diet)

Calories2,000
Total fat78g
Saturated fat20g
Carbohydrate275g
Added sugars50g
Fibre28g
Sodium2,300mg
Protein50g

Added sugar vs total sugar

Where the sugar comes from: Starbucks US Egg, Pesto & Mozzarella Sandwich

An estimated 1g of the 1g counts as added sugar, or about 0.2 teaspoons. None of it is naturally occurring.

Added sugars come from

  • lemon juice concentrate in the kale pesto

Dietary Guidelines for Americans, 2025–2030: no more than 10g of added sugar per meal from age 11 and none for children aged 10 and under. FDA Daily Value: 50g a day. Starbucks publishes total sugar only. Boone counts sugars, syrups, honey, malt and juice concentrates in the ingredient list as added, and the sugars in milk, cheese, whole fruit, 100% juice and vegetables as naturally occurring.

Ultra-processed food: what is really in it

Processing and additives: Starbucks US Egg, Pesto & Mozzarella Sandwich

Starbucks US Egg, Pesto & Mozzarella Sandwich is built from 4 separately manufactured components. Reading the ingredient list closely, it contains maltodextrin, thickeners and gums, flavourings, preservatives, acidity regulators and protein isolates. These are not there to add nutritional value. They make industrial production and distribution possible.

Maltodextrin

A processed starch that adds body and bulk without much flavour. Found in the egg frittata patty.

Thickeners and gums

Thicken and stabilise fillings, sauces and egg mixtures so they hold up through freezing, storage and reheating. Found in the egg frittata patty.

Flavourings

Add or restore taste lost during processing. Found in the egg frittata patty.

Preservatives

Slow the growth of bacteria, yeasts and moulds, or stop fats going stale, in centrally prepared food. Found in the cheddar and onion bialy and kale pesto.

Acidity regulators

Control sourness and keep fillings, sauces and cured meats stable on the shelf. Found in the cheddar and onion bialy, egg frittata patty and kale pesto.

Protein isolates

Concentrated proteins extracted industrially to raise the protein count or build texture. Found in the egg frittata patty.

Boone classifies Starbucks US Egg, Pesto & Mozzarella Sandwich as NOVA group 4, ultra-processed, based on the additives named above. NOVA groups foods by how far they are from their whole-food form, not by how nutritious they are. A group 4 food is not automatically unhealthy, and a group 1 food is not automatically healthy. Read from the published ingredient list, October 2026.

Starbucks US Egg, Pesto & Mozzarella Sandwich contains at least 44 distinct ingredients: 28 raw and 16 manufactured. Raw means something you could buy and cook with at home; manufactured means a substance that only exists as an output of industrial processing.

Ingredient count: Starbucks US Egg, Pesto & Mozzarella Sandwich

What you orderRawManufacturedTotal% manufactured
Starbucks US Egg, Pesto & Mozzarella Sandwich on its own28164436%

The 16 manufactured ingredients

ascorbic acid, citric acid, cultured wheat flour, folic acid, hydrolyzed protein, lactic acid, maltodextrin, milk protein concentrate, natural flavors, natural ginger flavor, niacin, reduced iron, riboflavin, thiamine mononitrate, xanthan gum, yeast extract.

The 28 raw ingredients

bacterial culture, basil, canola oil, cheese culture, corn starch, cultured pasteurized milk, cultured pasteurized part-skim milk, eggs, enzymes, extra virgin olive oil, garlic, ginger, kale, lemon juice concentrate, malted barley flour, olive oil, onion, parsley, pasteurized milk, pasteurized skim milk, rice vinegar, rice wine, salt, sea salt, sunflower oil, water, wheat flour, yeast.

What those ingredients are, by type

Preservatives and acidity regulators5
Grains and starches5
Meat, fish, dairy and eggs5
Vitamins and fortification5
Raising agents, yeast and cultures4
Herbs and spices4
Oils and fats4
Fruit, vegetables, nuts and seeds3
Flavourings and extracts3
Protein isolates2
Salt and minerals2
Water1
Emulsifiers and thickeners1

Boone counts every distinct named ingredient on Starbucks’ published ingredient list, including sub-ingredients, and removes duplicates, so salt appearing in three components counts once. Raw covers whole foods and basic kitchen staples such as flour, milk, sugar, salt and oil. Manufactured covers substances that only exist as an output of industrial processing. Every figure here is a minimum.

Ingredients

Starbucks US Egg, Pesto & Mozzarella Sandwich is made from 4 components, all separately manufactured.

Ingredients by component: Starbucks US Egg, Pesto & Mozzarella Sandwich

Cheddar and onion bialy

Enriched Wheat Flour (Wheat Flour, Malted Barley Flour, Niacin, Reduced Iron, Ascorbic Acid (Dough Conditioner), Thiamine Mononitrate, Riboflavin, Folic Acid), Water, White Cheddar Cheese (Pasteurized Milk, Bacterial Culture, Salt, Microbial Enzymes), Onions, Vegetable Oil (Canola, Sunflower And/or Soybean Oil), Extra Virgin Olive Oil, Salt, Yeast, Wheat Flour, Cultured Wheat Flour, Lactic Acid, Ascorbic Acid, Microbial Enzymes.

Egg frittata patty

Eggs, Yogurt (Pasteurized Skim Milk, Milk Protein Concentrate, Microbial Enzymes, Cheese Culture), Monterey Jack Cheese (Pastuerized Milk, Cheese Culture, Salt, Microbial Enzymes), Gruyere Cheese (Cultured Pasteurized Milk, Salt, Microbial Enzymes), Unmodified Corn Starch, Mirin (Rice Wine), Natural Ginger Flavor, Ginger Puree (Ginger, Water, Salt, Citric Acid), Soy Type Flavor (Hydrolized Protein, Yeast Extract, Maltodextrin, Sunflower Oil, Natural Flavor), Garlic, Salt, Rice Vinegar, Xanthan Gum, Citric Acid.

Low moisture part-skim mozzarella cheese

Cultured Pasteurized Part-skim Milk, Salt, Microbial Enzymes.

Kale pesto

Kale, Vegetable Oil Blend (Canola Oil, Olive Oil), Basil, Parsley, Garlic, Lemon Juice Concentrate, Sea Salt, Citric Acid, Ascorbic Acid.

Ingredients taken from the Starbucks US menu at starbucks.com, retrieved October 2026, for the standard recipe. Recipes change, so always check in store before ordering if you have an allergy.

Allergens at a glance

Starbucks US Egg, Pesto & Mozzarella Sandwich contains milk, eggs, wheat and barley.

Allergen information: Starbucks US Egg, Pesto & Mozzarella Sandwich

AllergenStatus
MilkContains
EggsContains
FishNot declared
Crustacean shellfishNot declared
Tree nutsNot declared
PeanutsNot declared
WheatContains
SoybeansNot declared
SesameNot declared
Barley (UK declarable)Contains

Contains = declared in the Starbucks US allergen statement for this item or named in its ingredient list. Starbucks stores handle and warm food on shared equipment, so no item can be guaranteed allergen free. UK rules also require barley, oats, mustard, celery and sulphites to be declared; these are shown where the ingredient list or allergen statement names them. Retrieved October 2026.

Frequently asked questions

How many calories are in a Starbucks US Egg, Pesto & Mozzarella Sandwich?+

Boone calculates that Starbucks US Egg, Pesto & Mozzarella Sandwich contains 390 calories, which is 20% of the 2,000-calorie Daily Value and 26% of the daily needs of a moderately active child aged 4 to 8.

How much added sugar is in a Starbucks US Egg, Pesto & Mozzarella Sandwich?+

Boone estimates that Starbucks US Egg, Pesto & Mozzarella Sandwich contains 1g of added sugar, about 0.2 teaspoons, which is 2% of the 50g FDA Daily Value. Starbucks publishes 1g of total sugar.

Is Starbucks US Egg, Pesto & Mozzarella Sandwich within US sugar guidance for children?+

The Dietary Guidelines for Americans, 2025–2030 recommend no added sugar for children aged 10 and under and no more than 10g per meal from age 11. With an estimated 1g of added sugar, Starbucks US Egg, Pesto & Mozzarella Sandwich is within the per-meal limit for ages 11 and over but above the advice for children aged 10 and under.

How much saturated fat is in a Starbucks US Egg, Pesto & Mozzarella Sandwich?+

Starbucks US Egg, Pesto & Mozzarella Sandwich contains 6g of saturated fat. Boone calculates this as 30% of the 20g Daily Value and 35% of the 17g limit for a child aged 4 to 8.

Is Starbucks US Egg, Pesto & Mozzarella Sandwich ultra-processed?+

Boone classifies Starbucks US Egg, Pesto & Mozzarella Sandwich as NOVA group 4. Reading the published ingredient list, it contains maltodextrin, thickeners and gums, flavourings, preservatives, acidity regulators and protein isolates. NOVA group 4 describes how far a food is from its whole-food form, not how nutritious it is.

Is Starbucks US Egg, Pesto & Mozzarella Sandwich suitable for children?+

Boone’s analysis flags that its 790mg of sodium is 53% of the daily limit for a child aged 4 to 8; its estimated 1g of added sugar is above the Dietary Guidelines advice of no added sugar for children aged 10 and under. That does not make it off limits, but it does mean an Egg, Pesto & Mozzarella Sandwich uses up a large share of a young child’s day in one item.

How much protein is in a Starbucks US Egg, Pesto & Mozzarella Sandwich?+

Starbucks US Egg, Pesto & Mozzarella Sandwich contains 21g of protein, which Boone calculates as 42% of the 50g Daily Value.

How much sodium is in a Starbucks US Egg, Pesto & Mozzarella Sandwich?+

Starbucks US Egg, Pesto & Mozzarella Sandwich contains 790mg of sodium. Boone calculates that as 53% of the daily limit for a child aged 4 to 8 and 34% of the 2,300mg adult limit.

What allergens are in a Starbucks US Egg, Pesto & Mozzarella Sandwich?+

Starbucks US Egg, Pesto & Mozzarella Sandwich contains milk, eggs, wheat and barley, according to Starbucks US published information. Food is handled on shared equipment, so always check in store if you have an allergy.