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Last updated: Aug 9, 2026

Capt. Submarine

Add Spanish Onions

ToppingsPopular

Capt. Submarine Add Spanish Onions is carb-leaning, with about 91% of macro calories from carb. Each serving has 9 calories, 0.2g protein, 2.1g carbs, and 0g fat, making it a lighter restaurant option to compare with larger meals.

1 Serving (28.3g)

Serving Size

28.3 g

Serving Weight

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Calories

Per serving

0.2 g

Protein

2.1 g

Carbs

0 g

Fat

Nutrition Facts

Amount per serving

Calories9 kcal

% Daily Value*

Total Fat 0 g0%

Saturated Fat 0 g0%

Trans Fat 0 g—

Cholesterol 0 mg0%

Sodium 2 mg0%

Total Carbohydrate 2.1 g1%

Dietary Fiber 0.3 g1%

Total Sugars 1.4 g—

Protein 0.2 g0%

Vitamin A—

Vitamin C—

Vitamin D—

Calcium—

Iron—

Potassium—

Caffeine—

* The % Daily Value tells you how much a nutrient in a serving contributes to a daily diet.

Nutrition Breakdown

kcal

Protein0.2 g (9%)

Carbs2.1 g (91%)

Fat0 g (0%)

Estimated calorie contribution using 4 kcal/g for protein and carbohydrates and 9 kcal/g for fat.

Meal Planning Insights

Protein density2.2/10

9% of macro calories come from protein.

Satiety index3.3/10

Estimated from protein, fiber, calories, and fat balance.

Activity estimate2 min walk

About 1 minutes of running for this calorie total.

Key Nutrients

Protein 0.2 g0%

Fiber 0.3 g1%

Sodium 2 mg0%

Sugars 1.4 g—

Saturated Fat 0 g0%

How we calculate these values

Diet Compatibility

High protein2.2/10 protein density from 0.2g protein and 9 calories.No

Lower carb2.1g carbs per serving.Yes

Low fat0g total fat per serving.Yes

High sugar1.4g total sugars per serving.No

High sodium2mg sodium per serving.No

Vegetarian source flagNo vegetarian flag is published for this item.Not flagged

Compare with other items

Select up to 3 items to compare calories, protein, sodium, and macros.

Quick comparisons

Add Spanish Onions has 73 fewer calories than 10" White Flour Tortilla and 1.8g less protein. Compare

Add Spanish Onions has 70 fewer calories than 10" Whole Wheat Tortilla and 2.3g less protein. Compare

10" White Flour Tortilla82 kcal · 2 g protein10" Whole Wheat Tortilla79 kcal · 2.5 g protein6" Flatbread80 kcal · 2.5 g protein6" Wheat Sub Bun79 kcal · 3.2 g protein6" White Sub Bun76 kcal · 3.2 g proteinAdd 3" Sliced Pepperoni51 kcal · 3.7 g protein

Compare with 10" White Flour Tortilla

Add Spanish Onions Compared With Nearby Items

Capt. Submarine Add Spanish Onions is listed in the Toppings category with 9 calories, 0.2g protein, 2.1g carbs, and 0g fat per serving.

Data Source and Methodology

Nutrition values for Add Spanish Onions are maintained in Nutrimetry from restaurant-published menu data and were last checked on Aug 9, 2026. Macro percentages use 4 calories per gram for protein and carbohydrates and 9 calories per gram for fat.

Read the data methodology

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