About This Healthy Recipe
Onigiri are simple rice parcels that are easy to pack, portion, and customize. This version uses a blend of short-grain white and brown rice for texture, then fills the center with tuna, avocado, Greek yogurt, and a little rice vinegar.
Cucumber and edamame on the side make the meal feel complete without turning the onigiri into overstuffed rice balls. They are best eaten the same day, making them a good weekend lunch or a practical morning-prep option.
This recipe is written with familiar supermarket ingredients, measured quantities, and practical home-kitchen methods. It is intended as general food and fitness education rather than individualized diet treatment. If you like this style of meal, you may also enjoy Crispy Salmon Sushi Bowl with Edamame, Cucumber and Avocado or Mediterranean Tuna White Bean Salad Bowl from our healthy-meals library.
Why Readers May Like It
- 1Tuna and edamame provide protein in a portable lunch.
- 2Avocado adds creaminess and unsaturated fat without mayonnaise.
- 3The rice gives useful carbohydrate for active days.
Recipe Summary and Estimated Nutrition
Values are calculated from the listed ingredient weights and divided by 4 servings. Product labels, produce size, cooking loss, drained weight, and substitutions can change the result.
4 servings
USDA-aligned generic food estimates divided by the listed yield.
Estimated energy per serving
Calculated from listed ingredients
Includes fiber and sugars
Includes unsaturated and saturated fat
Ingredient-by-Ingredient Nutrition Breakdown
| Ingredient | Amount used | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|---|
| Cooked short-grain rice blend | 2 cups cooked | 400 g | 520 kcal | 10 g | 112 g | 2 g |
| Canned tuna in water, drained | 10 oz drained | 280 g | 326 kcal | 72 g | 0 g | 3 g |
| Avocado, diced | 1 medium | 150 g | 240 kcal | 3 g | 12 g | 22 g |
| Plain nonfat Greek yogurt | 1/3 cup | 75 g | 44 kcal | 8 g | 2.5 g | 0.2 g |
| Rice vinegar | 1 tablespoon | 15 g | 3 kcal | 0 g | 0.5 g | 0 g |
| Cucumber, sliced | 2 cups | 300 g | 45 kcal | 2 g | 10 g | 0.3 g |
| Cooked edamame | 2 cups shelled | 310 g | 377 kcal | 36 g | 28 g | 16 g |
| Nori, cut into strips | 4 small sheets | 10 g | 35 kcal | 4 g | 4 g | 0.3 g |
| Sesame seeds | 1 teaspoon | 3 g | 17 kcal | 0.5 g | 0.7 g | 1.5 g |
| Calculated full-recipe total | 4 servings | 1543 g | 1607 kcal | 135.5 g | 169.7 g | 45.3 g |
| Calculated full-recipe total | 4 servings | 1543 g | 1607 kcal | 135.5 g | 169.7 g | 45.3 g |
How This Nutrition Estimate Was Prepared
- Each ingredient has an explicit gram weight.
- Generic food-composition estimates are aligned with USDA FoodData Central.
- Full-recipe values are divided by the listed yield before display rounding.
- Optional ingredients are excluded unless measured in the base recipe.
Accuracy note: These numbers are credible estimates, not laboratory analysis. Use exact package labels when precision is important.
Ingredients
Rice
Filling
Side
Wrap
Finish
Professional Step-by-Step Preparation
Equipment
Cutting board, chef knife, measuring tools, mixing bowls, and the cookware described in the directions.
Before You Start
Wash produce, keep raw animal proteins separate from ready-to-eat foods, and use a food thermometer where appropriate. Read the whole method once before you begin so the meal comes together smoothly.
Cook and cool the rice
Cook the rice according to package instructions. Let it cool until warm enough to handle but not fully cold.
Success tip: Warm rice sticks together more easily than chilled rice.
Mix the tuna filling
Combine tuna, avocado, Greek yogurt, rice vinegar, and black pepper. Keep the mixture chunky rather than mashing it smooth.
Success tip: Drain the tuna thoroughly so the filling does not make the rice soggy.
Shape the onigiri
Wet clean hands lightly. Flatten a portion of rice, add a spoonful of filling to the center, close the rice around it, and shape into a compact triangle or round.
Success tip: Use gentle pressure; squeezing too hard makes the rice dense.
Add nori and sesame
Wrap a strip of nori around each onigiri and sprinkle with sesame seeds.
Success tip: Add nori close to serving time if you prefer it crisp.
Pack with cucumber and edamame
Divide cucumber and edamame among four meal containers and add the onigiri once they have cooled.
Success tip: Keep the lunch chilled because it contains tuna and yogurt.
Potential Benefits and Things to Consider
Potential Benefits
- Tuna provides lean protein and vitamin B12.
- Edamame adds plant protein, fiber, and folate.
- Avocado contributes unsaturated fat and helps create a creamy filling.
Things to Consider
- Tuna contains fish, edamame contains soy, yogurt contains milk, and sesame is a major allergen in the U.S.
- Rice should be cooled and refrigerated promptly for food safety.
- People who are pregnant or limiting mercury exposure should follow local fish-consumption guidance.
Healthy eating is about the overall pattern rather than one “perfect” dish. This recipe can fit into a varied diet when portions, sides, and frequency match your appetite, activity level, and individual needs.
Who May Enjoy This Recipe?
It May Work Well For
- Active adults looking for balanced, practical meals with a clear protein source.
- Health-conscious readers who value vegetables, whole foods, and transparent nutrition estimates.
- Busy households in the U.S., Canada, UK, Australia, and similar markets that want familiar grocery-store ingredients.
Best Times to Eat It
- Lunch at home or packed for later when storage is appropriate
- Meal prep when the components can be cooled and refrigerated safely
- Before or after training according to individual preference, timing, and energy needs
How to Adjust It for Different Goals
For More Protein
Increase the main protein-rich ingredient by about 20–25% or add a measured protein-rich side. Recalculate nutrition if precise tracking matters.
For Lower Calories
Keep vegetables generous and reduce calorie-dense oil, cheese, nuts, seeds, or grain portions slightly rather than removing the protein source.
For More Carbohydrate
Add a measured serving of whole grains, potatoes, fruit, or whole-grain bread around training or higher-energy days.
Substitutions, Dietary Notes, and Allergens
Practical Substitutions
- Use canned salmon instead of tuna.
- Use mashed white beans for a fish-free filling.
- Use all white short-grain rice if brown rice does not hold together well.
Allergen Information
Contains fish, soy, milk, and sesame.
Always check packaged ingredient labels because formulations and cross-contact statements can change between brands and countries.
Storage and Meal Preparation
For best texture and food safety, refrigerate promptly and eat within 24 hours. Keep nori separate until serving if you want it crisp.
Cool cooked food promptly, refrigerate within 2 hours, and reheat leftovers until steaming hot where appropriate. When packing food for work or travel, keep cold components at 40°F (4°C) or below.
Frequently Asked Questions
For best texture and food safety, refrigerate promptly and eat within 24 hours. Keep nori separate until serving if you want it crisp.
Increase the main protein-rich ingredient modestly or add a measured side such as Greek yogurt, cottage cheese, edamame, eggs, beans, poultry, seafood, or tofu that fits the recipe.
Use canned salmon instead of tuna.
Each listed ingredient is assigned a generic USDA-aligned food-composition estimate by gram weight. Ingredient values are totaled for the full recipe and divided by the stated yield.
It is a general healthy-meal idea. Individual nutrition needs differ, especially with allergies, medical conditions, pregnancy, prescribed diets, or sport-specific fueling requirements.
No. This page is educational and does not diagnose, treat, or provide individualized nutrition advice.
Nutrition and Safety Note
This page is for general education. It does not diagnose, treat, or provide individualized diet advice. People with allergies, medical conditions, pregnancy, or specific nutrition requirements should seek qualified professional guidance.
Nutrition Data Source
Read our Nutrition Calculation Methodology for details on weights, estimates, rounding, and limitations.
