This easy, 30-minute Spam Onigiri is the ultimate grab-and-go snack - salty, savory, and super satisfying. It’s quick to make, kid-friendly, and perfect for busy weekdays or packing into lunchboxes. With just a few pantry staples, you’ll have a delicious bite that hits all the right notes!
🍙 A Bento Box Hero
Spam Onigiri is one of those comfort foods that never gets old. It’s salty, savory, and nostalgic - especially if you grew up with Asian snacks or frequently hit up Japanese convenience stores for those perfectly wrapped triangles. This easy, 5-ingredient Spam Onigiri recipe is quick to make, great for meal prep, and perfect for tossing into a lunch box or enjoying as a late-night bite.
Unlike Spam Musubi, which uses a full slice of Spam, this version mashes it up for more flavor in every bite. The rice is warm and sticky, seasoned with soy sauce and furikake, then shaped into triangles and wrapped in crispy nori, or seaweed. Whether you call it spam onigiri, onigiri spam, or Spam musubi onigiri, this little snack is a hit with kids and grown-ups alike.
You can enjoy Japanese Spam Onigiri hot, room temperature, or cold straight from the fridge. It’s a fun bento box idea, snack on the go, or a great addition to a lunch spread alongside something refreshing like Korean Broccoli Salad or Lychee Lemonade. Once you try making onigiri with Spam at home, you’ll wonder why you haven’t been doing it all along!
Why You'll Love It
- Easy: This Spam Onigiri is quick to prep and even quicker to devour. With just a handful of pantry staples, a short stovetop sauté, and a bit of shaping, it's ideal for busy weeknights and rushed mornings. It's as fuss-free as my Berry Cheesecake Overnight Oats - no stress, all comfort!
- Convenient: These triangle rice bites hold up great in lunch boxes and bento-style meals. Whether you’re packing for school or heading out the door, they're the ultimate grab-and-go food.
- Family friendly: Kids love the fun shape and savory, slightly sweet flavor combo of these Spam Onigiri. They’re easy to eat (no utensils needed!) and customizable for picky eaters.
🧂 Ingredients
- Spam: Spam is basically cooked ham in a can. It's popular in Asian cuisine because it's affordable, filling, and comforting, like in this Spam Loco Moco. For this onigiri recipe, we mash Spam into pea-sized pieces to evenly spread it into the rice. I recommend using low-sodium Spam.
- White rice: For best results, use short or medium-grain rice like sushi rice or Calrose rice. These are naturally sticky and will help the onigiri hold its shape without falling apart.
- Soy sauce: Adds umami and seasoning to the onigiri. Use low sodium if possible.
- Furikake: A Japanese seasoning blend consisting of seaweed (nori) flakes, sesame seeds, salt, and sugar. Easily adds texture, flavor, and umami. It's also delicious in Furikake Salmon and Kimchi Spam Fried Rice.
- Seaweed: Used to wrap the outside of the rice balls. Make sure to use toasted nori sheets and cut them into strips.
Substitutions & Variations
- Instead of Spam, use any type of meat you'd like in your onigiri! Finely diced chicken, cubed deli ham or turkey, scrambled egg bits, or bacon are great options.
- If using leftover rice, make sure to heat it up until it's warm and sticky so it'll adhere together. Short or medium-grain brown rice is also a suitable substitute.
- Replace furikake with toasted sesame seeds or a pinch of MSG.
- It's easy to customize and flavor onigiri to your taste. Instead of soy sauce, try teriyaki sauce or fish sauce.
👩🏻🍳 How To Make Spam Onigiri
⬇️ Please scroll down to the recipe card to see full ingredient amounts and instructions.
STEP ONE: First, mash a can of Spam into bite-sized pieces using a food processor, potato masher, or fork.
Then transfer to a pan and cook over medium-high heat until lightly fried and golden brown, about 6-8 minutes. There's enough fat and salt in the Spam that it doesn't require any additional oil or seasoning.
STEP TWO: To a large bowl, add the freshly cooked white rice, fried Spam, soy sauce, and furikake. Mix well.
Assembly With A Mold
STEP THREE: To assemble the onigiri with a mold, first lightly wet the mold with water to prevent sticking. Fill with rice to the top (I use about 6 tablespoons, but it will depend on the size of your mold) and press down with your fingers or spoon to compact the rice, especially at the edges.
Close the mold and press firmly with the lid. Carefully open and gently remove the triangle.
Assembly Without A Mold
STEP THREE: Scoop about ⅓ cup of the rice mixture into the center of sheet of plastic wrap. Fold the plastic around it and twist to form the rice into a ball.
Cup your hands and use your palms and fingers to apply gentle but firm pressure to mold the rice into a triangle. Unwrap from plastic wrap.
STEP FOUR: When ready to serve, place base of onigiri triangle in the center of a seaweed strip. Fold both sides up and press onto rice.
💭 Top Tips
- Use freshly cooked rice. Warm, freshly cooked rice sticks together best and will absorb the soy sauce better for more flavor.
- Wet your hands and tools. Always wet your hands, rice molds, or measuring cups with water (or lightly salt them) to prevent rice from sticking. It makes shaping the Spam Onigiri so much easier. I also use food-grade gloves for less mess.
- Press firmly, especially around the edges. You want the onigiri to hold together even as you're eating it. If using a mold, I tuck a spoon into the edges to apply as much pressure as possible.
- Wrap right before eating. The seaweed can get soggy if wrapped too early because of moisture from the rice. If you’re packing Spam Onigiri for later, either keep nori separate or wrap tightly just before eating. Alternatively, use individual seaweed wrappers specifically made for onigiri.
🥡 Storing & Freezing
Storing: Wrap each Spam Onigiri tightly in plastic wrap. It's safe to store at room temperature for up to 4 hours.
To store in the refrigerator, wrap each individual triangle in plastic wrap in an air-tight container for up to 2 days.
Freezing: Skip the seaweed and wrap each onigiri tightly in plastic wrap. Then store in a freezer-safe zip-top bag or container for up to 1 month.
Reheating: Unwrap plastic, then wrap loosely in a damp paper towel. Microwave in 30 second intervals until warm.
If frozen, defrost in the fridge overnight first, or microwave straight from frozen (about 1½-2 minutes total), checking in between.
Make Ahead: Follow the recipe as directed and wrap with nori before serving, or use seaweed wrappers specifically made for onigiri. The seaweed is wrapped separately to keep it fresh and crispy.
📖 Recipe FAQs
Yes! You can prep them up to 1 day ahead and keep them wrapped tightly in the fridge. For longer storage, freeze them without nori and reheat before eating. Add seaweed after reheating for best texture.
Absolutely. Spam Onigiri can be enjoyed hot, warm, or cold. They're especially popular in bento boxes and Japanese convenience stores because they’re tasty and portable at any temp.
Regular long-grain rice like jasmine or basmati isn’t sticky enough and tends to fall apart. If you don’t have sushi rice, try a medium-grain like Calrose, which holds together much better for onigiri.
Use freshly cooked, warm short- or medium-grain rice like sushi rice or Calrose - these have enough stickiness to hold their shape. Press the rice firmly (but not too hard) when shaping, especially at the edges, and avoid using rice that’s too dry or cold. Wet your hands or mold lightly to help compress the rice without it sticking.
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📋 Recipe
Spam Onigiri
Ingredients
- 1 can less sodium Spam
- 4 cups freshly cooked rice short or medium grain (see note)
- ½ tablespoon low sodium soy sauce
- 3 tablespoon furikake
- 1-2 roasted seaweed sheets (sushi nori) cut into 8 strips
Instructions
- Using a food processor, potato masher, or fork, mash Spam into small bite-sized pieces. Transfer to a large pan and cook over medium-high to high heat (no additional oil needed) until lightly golden brown, about 7-8 minutes.
- To the warm rice, add Spam, soy sauce, and furikake. Mix to combine.
- Shape into triangles. Mold: Wet mold with water. Fill with rice mixture to the top and use your fingers or a spoon to compress the rice, especially at the edges. Then press firmly with lid. Remove from mold.Plastic wrap: Scoop ⅓ cup into the center of a large sheet of plastic wrap. Fold plastic around rice to form a ball. Cup your hands and shape into a triangle.
- To wrap the nori, lay a piece of seaweed down with the dull side facing up. Place the onigiri in the middle, standing up, and fold seaweed up. Serve immediately.
Notes
- Rice:For best results, use freshly cooked short or medium-grain rice like sushi rice or Calrose rice. These are naturally sticky and will help the onigiri hold its shape without falling apart.
- For easy assembly, I recommend using an onigiri mold.
- Wrap right before eating: The seaweed can get soggy if wrapped too early because of moisture from the rice. If you’re packing Spam Onigiri for later, either keep nori separate or wrap tightly just before eating. Alternatively, use individual seaweed wrappers specifically made for enjoying onigiri on-the-go.
- Storing: Wrap each Spam Onigiri tightly in plastic wrap. It's safe to store at room temperature for up to 4 hours. To store in the refrigerator, wrap each individual triangle in plastic wrap in an air-tight container for up to 2 days.
- Substitutions:
- Instead of Spam, use any type of meat you'd like. Finely diced chicken, cubed deli ham or turkey, scrambled egg bits, or bacon are great options.
- If using leftover rice, make sure to heat it up until it's warm and sticky so it'll adhere together. Short or medium-grain brown rice is also a suitable substitute.
- Replace furikake with toasted sesame seeds or a pinch of MSG.
- It's easy to customize and flavor onigiri to your taste. Instead of soy sauce, try teriyaki sauce or fish sauce.
Nutrition
Recipe by Jessica (Balance with Jess) | Photography by Creating Kaitlin
Bill
This recipe rocks! So savory and yummy!
Jessica
Thank you Bill!