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Mister O1: high-protein, low-calorie picks

Here are the 70 Mister O1 items with nutrition. We sorted them by protein so you can find something filling that fits your calories. Every number comes from the nutrition Mister O1 publishes (see the source).

8 items are 400 calories or less. 39 have 30 g of protein or more. The most protein at 400 calories or less is Small Hawaiana (21 g).

Most protein, 400 calories or less

Mister O1: most protein at 400 calories or less
ItemCalProteinCarbsFat
Small Hawaiana8 inch small pizza3822143.612.3
Small Riccardo8 inch small pizza37719.741.713.4
Small Cheese Pizza8 inch small pizza37919.738.814.4
Small Meat Lovers8 inch small pizza38519.438.716.4
Small Mushrooms8 inch small pizza36519.139.313.2
Small Matteo 2.08 inch small pizza39418.943.616
Small Alessandra Jalapeno8 inch small pizza32212.242.511.9

Most protein, 400 to 600 calories

Mister O1: most protein between 400 and 600 calories
ItemCalProteinCarbsFat
Small Ruben8 inch small pizza58530.844.531.4
Small Daniele8 inch small pizza47230.737.721.8
Azzurra Salad1 salad44828.818.131.4
Riccardo13 inch pizza58328.38215.3
Small Calzone Giorgio1 small calzone58226.546.230.7
Small Vittoria8 inch small pizza42125.83817
Small Coffee Paolo8 inch small pizza50525.250.721.9
Small Bella Margherita8 inch small pizza40824.337.717.4
Small Maria8 inch small pizza4642437.722.7
Small Federica8 inch small pizza4122340.215.7

Most protein for the calories

Items of 800 calories or less with at least 15 g of protein, ranked by grams of protein per 100 calories.

Mister O1: protein per 100 calories
ItemCalProteinPer 100 cal
Small Daniele8 inch small pizza47230.76.5
Azzurra Salad1 salad44828.86.4
Small Vittoria8 inch small pizza42125.86.1
Small Bella Margherita8 inch small pizza40824.36.0
Small Calzone Mauro1 small calzone75142.55.7
Small Federica8 inch small pizza412235.6
Small Hawaiana8 inch small pizza382215.5
Small Matteo8 inch small pizza62733.15.3
Small Ruben8 inch small pizza58530.85.3
Small Mushrooms8 inch small pizza36519.15.2

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Questions

What item under 1,000 calories has the most protein at Mister O1?

Daniele (13 inch pizza): 61.4 g protein, 950 calories, going by the chain's published nutrition.

What is a high-protein, low-calorie option at Mister O1?

At 400 calories or less, the most protein comes from Small Hawaiana (8 inch small pizza): 21 g protein, 382 calories; Small Riccardo (8 inch small pizza): 19.7 g protein, 377 calories; Small Cheese Pizza (8 inch small pizza): 19.7 g protein, 379 calories.

Where do these Mister O1 numbers come from?

From the nutrition information Mister O1 publishes, last checked November 5, 2026. Menus and recipes change, so check with the chain when it matters.

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