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Fast Food Calc

Starbucks UK · Sandwiches, Wraps & Toasties · UK & Ireland

Signature Tuna Melt Panini Calories & Nutrition

One Signature Tuna Melt Panini from Starbucks UK has 448 calories, 26g protein, 58g carbs, 12g fat and 4.3g sugar.

Key facts

  • Calories

    448 kcal

  • Protein

    26g

  • Carbohydrates

    58g

  • Sugars

    4.3g

It ranks #6 of 8 sandwiches, wraps & toasties from lowest to highest calories, with 6% more calories than the category average of 422 kcal.

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Ingredients & allergens

Allergens:

  • Milk
  • Wheat
  • Egg
  • Mustard
  • Fish

Ingredients

Ciabatta with sourdough (wheat flour [WHEAT flour, calcium carbonate, folic acid, iron, niacin, thiamin], water, WHEAT semolina, salt, rapeseed oil, yeast, fermented WHEAT flour, malted WHEAT flour, emulsifier: mono- and diglycerides of fatty acids, preservative: calcium propionate, palm oil, flour treatment agent: ascorbic acid), tuna (20%) (tuna (FISH), salt), medium Cheddar cheese (9%) (MILK), reduced fat mayonnaise (water, rapeseed oil, free-range pasteurised whole EGG, cornflour, spirit vinegar, salt, MUSTARD flour), red pepper, mozzarella cheese (MILK), red onion, béchamel sauce (whole MILK, water, single cream (MILK), salted butter [butter (MILK), salt], wheat flour [WHEAT flour, calcium carbonate, folic acid, iron, niacin, thiamin], cornflour, salt, white pepper, ground bay leaf), black pepper.

Allergens shown in capitals as declared by Starbucks UK. Recipes change and items are made on shared equipment, so always check in store if you have an allergy.

Lower-calorie alternatives

Signature Tuna Melt Panini: common questions

How many calories are in a Signature Tuna Melt Panini?

One Signature Tuna Melt Panini from Starbucks UK has 448 calories, 26g protein, 58g carbs, 12g fat and 4.3g sugar. That is 22% of the 2,000 kcal reference intake for an average adult.

How much sugar is in Signature Tuna Melt Panini?

4.3g of total sugars, 5% of the 90g reference intake for total sugars.

Is Signature Tuna Melt Panini dairy-free or vegan?

The standard build contains milk. Starbucks UK prepares food and drinks on shared equipment, so traces are possible.

Source: Starbucks UK Nutrition & Allergen Guide - Beverages (Autumn 2026) (18/09/26); Starbucks UK Nutrition & Allergen Guide - Food (Autumn 2026) (05/10/26). Data checked 2026-10-15. Starbucks is a trademark of its owner; Fast Food Calc is independent and not affiliated with Starbucks.