Starbucks Signature Tomato Mozzarella Panini contains 391 kcal per panini — 20% of the adult 2,000 kcal daily reference intake, 25% for a child aged 7 to 10, and 30% for a child aged 4 to 6. It is the lower calorie of the two signature paninis, sitting 62 kcal below the Tuna Melt Panini at 453 kcal.

Per panini: 391 kcal, 13g fat (6.2g saturated), 51g carbohydrate (5.1g sugar), 17g protein, 1.4g salt. The saturated fat at 6.2g is 31% of the adult daily guideline of 20g. The sugar at 5.1g is 17% of the adult daily free sugar limit of 30g. The salt at 1.4g is 23% of the adult daily limit of 6g.

Starbucks Signature Tomato Mozzarella Panini contains 5.1g of sugar per panini — 1.3 teaspoons and 17% of the adult daily free sugar limit of 30g. For a child aged 4 to 6, this uses 27% of their daily free sugar limit. The sugar comes primarily from the tomato in the filling and the bread rather than added sweeteners. This is low in sugar for a hot food item. The NHS free sugar limit is 30g per day for adults, 24g for children aged 7 to 10, and 19g for children aged 4 to 6.

Starbucks Signature Tomato Mozzarella Panini contains 1.4g of salt per panini — 23% of the adult daily limit of 6g and 47% of the daily limit for a child aged 4 to 6. This is lower than the Tuna Melt Panini at 1.8g and the Smoked Ham and Cheddar Sandwich at 1.8g, making it one of the lower salt hot food options at Starbucks.

Starbucks Signature Tomato Mozzarella Panini contains 6.2g of saturated fat per panini — 31% of the adult daily guideline of 20g and 39% for a child aged 4 to 6. The saturated fat comes from the mozzarella cheese. Fresh mozzarella is lower in saturated fat than harder cheeses, which keeps the saturated fat content moderate relative to other cheese-based hot items.

Starbucks Signature Tomato Mozzarella Panini contains 17g of protein per panini — 34% of the adult daily reference intake of 50g. The protein comes from the mozzarella cheese and the panini bread. At 17g it is a moderate protein contribution for a hot food item, lower than the Tuna Melt Panini at 27g but higher than most sweet bakery items.

Yes. Starbucks Signature Tomato Mozzarella Panini is classified as NOVA 4, ultra-processed. The panini bread contains emulsifiers, modified starch and preservatives including calcium propionate. The tomato sauce or filling component contains acidity regulators. These industrial additives are present in the bread and condiment elements despite the mozzarella and tomato filling being minimally processed ingredients in themselves.

Starbucks Signature Tomato Mozzarella Panini contains wheat/gluten and milk as declared allergens — just two, the simplest allergen profile of any hot panini or toastie at Starbucks. The milk comes from the mozzarella cheese. It does not contain egg, soya, peanuts, tree nuts, fish, shellfish, celery, mustard, sesame, lupin, molluscs or sulphites. Starbucks prepares food in stores where all 14 major allergens are present. Cross-contamination cannot be guaranteed.

Yes. Starbucks Signature Tomato Mozzarella Panini is suitable for vegetarians. It contains no meat or fish. It is not suitable for vegans as it contains mozzarella cheese. It is also not suitable for those avoiding gluten or dairy. For a vegan hot food option at Starbucks, the Spinach Pea and Falafel Wrap or Beyond Meat Breakfast Sandwich are the main alternatives.

The salt content of 1.4g — 47% of the daily limit for a child aged 4 to 6 — is the primary consideration for younger children. The sugar at 5.1g uses 27% of their daily free sugar limit, which is moderate. With only two declared allergens — wheat and milk — it has a simpler allergen profile than most other hot food items at Starbucks. It is suitable for vegetarian children. For younger children, the salt level means it is better suited as an occasional rather than daily choice.

The Tomato Mozzarella Panini contains 391 kcal versus 453 kcal in the Tuna Melt — 62 fewer calories. Salt is lower at 1.4g versus 1.8g. Sugar is slightly higher at 5.1g versus 3.8g. Protein is significantly lower at 17g versus 27g. The Tomato Mozzarella has a simpler allergen profile at two allergens versus five and is suitable for vegetarians where the Tuna Melt is not. For protein the Tuna Melt wins; for allergen simplicity and vegetarian suitability, the Tomato Mozzarella is the better choice.

At 5.1g of sugar the Tomato Mozzarella Panini leaves considerable room for a drink without exceeding the adult daily free sugar limit of 30g. A plain Cappuccino or flat white adds only the natural sugars from milk — around 9-12g. A Caramel Macchiato adds 23g, bringing the total to 28.1g — still just within the adult daily limit. A Grande Caramel Frappuccino at 48g would take the combined total to 53.1g, nearly double the adult daily limit. An unsweetened coffee or herbal tea keeps the total order sugar low.

No. At 5.1g of sugar — 17% of the adult daily free sugar limit — the Tomato Mozzarella Panini is low in sugar for a hot food item. The sugar comes from natural sources in the tomato and bread rather than added sweeteners. It is the lowest sugar panini option at Starbucks and among the lower sugar hot food items across the range.

The salt in the Tomato Mozzarella Panini comes from the mozzarella, tomato sauce and bread and cannot be reduced by customisation. At 1.4g it uses 23% of the adult daily salt limit — moderate for a hot food item. Pairing it with low-salt drinks — an Americano, flat white or herbal tea — and avoiding salted snacks alongside keeps the overall order salt contribution manageable.

Starbucks Signature Tomato Mozzarella Panini is one of the more balanced hot food options at Starbucks — 391 kcal, 5.1g sugar, 1.4g salt and only two declared allergens. It is the only vegetarian hot panini option and has the simplest allergen profile of any panini or toastie. The 6.2g of saturated fat from mozzarella is moderate. For vegetarians, those managing allergen complexity or anyone looking for a lower calorie and lower sugar hot food option, it is the standout panini choice at Starbucks.