Savory Korean Rice Balls with Tuna and Seaweed (Jumeokbap)

Alexandra Brown
Alexandra Brown
Published: May 21, 2026
Tags: snack, easy, Rice, Korean, Lunchbox

Korean Rice Balls

Easy, bite-sized Korean rice balls filled with creamy tuna and rolled in crunchy seaweed flakes.

Prep Time:15 minCook Time:15 minTotal Time:30 minServings:3Difficulty:Easy

Jumeokbap, which literally translates to 'fist rice,' is the ultimate Korean comfort food for when you're on the go. Whether you're packing a colorful lunchbox for a picnic or looking for a satisfying after-school snack, these seasoned rice balls are incredibly versatile and endlessly customizable. I love how the warm, fluffy short-grain rice acts as a perfect canvas for savory fillings and crunchy textures.

In this version, we’re using a classic combination of canned tuna and creamy mayo, balanced with the salty-sweet crunch of seasoned seaweed flakes (gim-jaban). It’s a nostalgic dish that brings a bit of Seoul’s vibrant street food magic right into your kitchen. Plus, they are so much fun to assemble with your hands—it is truly 'hand-made' comfort food at its finest!

Nutrition (per serving)

Calories:385 kcal
Protein:14 g
Carbs:52 g
Fat:12 g

Directions

  1. 1
    Warm short-grain rice placed in a large mixing bowl for jumeokbap.

    Place the freshly cooked warm rice in a large mixing bowl. It is important the rice is warm so the seasonings incorporate well.

  2. 2
    Drained tuna mixed with mayonnaise, chili sauce, and minced pickled radish.

    In a separate small bowl, combine the drained tuna, mayonnaise, sriracha, and the finely minced pickled radish. Mix until smooth.

  3. 3
    Sesame oil, toasted sesame seeds, and salt folded into warm rice.

    Drizzle the sesame oil over the rice and add the toasted sesame seeds and salt. Use a rice paddle or spatula to gently fold the seasonings into the rice without mashing the grains.

  4. 4
    Roasted seaweed flakes folded into the seasoned rice mixture.

    Add about half of the seaweed flakes into the rice mixture and fold again.

  5. 5
    Disposable gloves lightly coated with sesame oil before shaping rice balls.

    Put on a pair of food-safe disposable gloves and lightly coat them with a drop of sesame oil to keep the rice from sticking to your hands.

  6. 6
    Flattened seasoned rice in a gloved palm filled with creamy tuna mixture.

    Scoop about 2 tablespoons of the rice mixture into your palm and flatten it slightly. Place a teaspoon of the tuna mixture in the center.

  7. 7
    Seasoned rice folded around tuna filling and shaped into a tight round ball.

    Fold the rice around the filling and squeeze firmly with your hand to form a tight, round ball about the size of a golf ball.

  8. 8
    Finished rice ball rolled in roasted seaweed flakes for a crunchy coating.

    Roll the finished ball in the remaining seaweed flakes for extra crunch and flavor. Repeat with the remaining ingredients.

  9. 9
    Finished jumeokbap packed in a lunch container with pickled radish.

    Serve immediately while the rice is soft, or pack them tightly in a container for a delicious lunch later.

Ingredients

  • Cooked short-grain white rice (warm):2 cups
  • Canned tuna, drained:5 oz
  • Mayonnaise:2 tbsp
  • Sriracha or Gochujang:1 tsp
  • Toasted sesame oil:1 tbsp
  • Toasted sesame seeds:1 tbsp
  • Seasoned seaweed flakes (Gim-jaban):½ cup
  • Pickled yellow radish (danmuji), finely minced:2 tbsp
  • Salt:¼ tsp

Tips & Notes

  • Always use short-grain rice (sushi rice); long-grain varieties like Basmati or Jasmine aren't sticky enough to hold the shape.
  • If you don't have seasoned seaweed flakes, you can crush up sheets of roasted snacking seaweed (gim) by hand.
  • For a spicy kick, add finely chopped kimchi that has been sautéed for a few minutes with a pinch of sugar.