Onigiri Las Vegas is a playful fusion dish that takes the classic Japanese rice ball—seasoned rice wrapped in nori—and gives it a Sin City makeover with bold, indulgent fillings like spicy tuna, teriyaki chicken, and even a crispy fried version. It works because the neutral, sticky rice balances rich, savory fillings, making it a satisfying handheld meal or snack that’s perfect for on-the-go eating, whether you’re at a buffet, a pool party, or just craving something comforting.
Ingredients
- 2 cups (370 g) short-grain Japanese rice (like Koshihikari or sushi rice)
- 2 1/4 cups (530 ml) water
- 1/4 cup (60 ml) rice vinegar
- 1 tbsp (15 g) sugar
- 1/2 tsp salt
- 4 sheets nori (dried seaweed), cut into 3-inch (7.5 cm) strips
- For the spicy tuna filling: 1 can (5 oz / 140 g) tuna in water, drained; 2 tbsp (30 g) mayonnaise; 1 tbsp (15 ml) sriracha (or to taste); 1 tsp soy sauce
- For the teriyaki chicken filling: 1 boneless, skinless chicken breast (about 6 oz / 170 g); 2 tbsp (30 ml) teriyaki sauce; 1 tsp vegetable oil
- For the fried onigiri (optional): 1/2 cup (60 g) panko breadcrumbs; 1 egg, beaten; 2 tbsp (30 ml) vegetable oil for frying
- Optional toppings: toasted sesame seeds, chopped green onions, pickled ginger
Instructions
- Rinse the rice in a fine-mesh strainer under cold water until the water runs clear (about 2-3 minutes). Drain well.
- Combine the rice and water in a rice cooker or saucepan. If using a saucepan, bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes. Remove from heat and let stand, covered, for 10 minutes.
- While the rice cooks, make the sushi seasoning: in a small bowl, mix the rice vinegar, sugar, and salt until dissolved.
- Prepare the fillings. For the tuna: mix the drained tuna, mayonnaise, sriracha, and soy sauce in a bowl. For the chicken: heat the oil in a small skillet over medium heat; cook the chicken breast for 5-7 minutes per side, until the internal temperature reaches 165°F (74°C) as measured with a food thermometer (USDA FSIS safe minimum). Let it rest for 5 minutes, then chop finely and toss with the teriyaki sauce.
- When the rice is done, transfer it to a large bowl. Fold in the vinegar mixture gently with a rice paddle or spatula, being careful not to mash the grains. Let the rice cool until it’s warm but comfortable to handle (about 10 minutes).
- Moisten your hands with water and sprinkle with a pinch of salt. Scoop about 1/3 cup (75 g) of rice into your palm. Make a small indentation in the center, add 1-2 teaspoons of the filling, then fold the rice over the filling and gently press into a triangle or ball shape. The rice should hold together without being packed too tightly.
- Repeat with the remaining rice and fillings. You should get about 8 onigiri.
- If making fried onigiri: after shaping, dip each onigiri in the beaten egg, then coat with panko. Heat the oil in a skillet over medium heat and fry each onigiri for 2-3 minutes per side until golden brown and crispy.
- Wrap each onigiri with a strip of nori just before serving (or let guests wrap their own to keep the nori crisp).
Tips
- Use short-grain rice, not long-grain; it’s stickier and holds its shape better. If you only have long-grain, add an extra tablespoon of water and cook a little longer, but the texture won’t be as authentic.
- Keep your hands wet while shaping to prevent sticking. Re-wet them every few onigiri.
- Don’t overpack the rice—it should be firm enough to hold together but still tender. If it’s too tight, the texture becomes dense and gummy.
- If the rice is too hot, it will be difficult to handle and may cook the filling. Let it cool to warm, but not cold, before shaping.
Serving Suggestions
Serve the onigiri as a main dish with a side of miso soup and a simple cucumber salad. For a Vegas-style spread, pair them with edamame, gyoza, and a cold Japanese beer. The fried version is great with a dipping sauce of soy sauce mixed with a little wasabi and mayo.
Variations
- Classic Salmon: Use cooked, flaked salmon (fresh or canned) mixed with a little mayo and salt.
- Veggie: Sautéed shiitake mushrooms and spinach with a splash of soy sauce.
- Spicy Crab: Imitation crab meat mixed with sriracha mayo.
- Buffalo Chicken: Shredded rotisserie chicken tossed with buffalo sauce and a little ranch.
- Breakfast Onigiri: Fill with scrambled eggs and crispy bacon bits.
Storage and Reheating
Store unfried onigiri in an airtight container in the refrigerator for up to 2 days. The nori will get soggy, so keep it separate and wrap just before eating. To reheat, microwave on a plate covered with a damp paper towel for 30-60 seconds, or until warm. Fried onigiri are best eaten fresh, but you can reheat them in a toaster oven at 350°F (175°C) for 5-7 minutes to restore crispness. Do not freeze onigiri with raw fish; if using cooked fillings, you can freeze for up to 1 month, but the texture will soften.
Frequently Asked Questions
Can I use regular white rice? Yes, but it won’t be as sticky. If you use long-grain, reduce the water slightly and add a bit more vinegar seasoning to help it hold.
Why does my onigiri fall apart? The rice may be too dry, or you didn’t pack it firmly enough. Make sure the rice is still warm and slightly moist, and press gently but firmly with both hands. Also, wetting your hands with water helps the rice stick together.
Is it safe to use raw fish? If you want a raw fish filling like salmon or tuna, use sushi-grade fish that has been frozen per FDA guidance (-4°F / -20°C for 7 days) to kill parasites. Pregnant people, young children, older adults, and those with weakened immune systems should choose a cooked version.
Can I make onigiri ahead of time? Yes, but they’re best within a few hours. If you make them the night before, wrap them tightly in plastic wrap and refrigerate. Let them come to room temperature for 10 minutes before eating, and add the nori just before serving.
How do I get the triangle shape? Practice! Use your palms to form a ball, then gently press the sides to create a triangle. You can also use a plastic onigiri mold (available online) for perfect shapes.
Can I bake the fried onigiri instead of frying? Yes, brush with oil and bake at 400°F (200°C) for 10-12 minutes, flipping halfway, until golden and crisp.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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