Easy Vegan Cucumber Sushi Rolls (Kappa Maki)

Whole Grains, Rice, and Pasta

March 22, 2026

There’s an elegant simplicity to a classic cucumber roll, or Kappa Maki. It’s the perfect introduction to the art of making sushi at home! With its clean, crisp flavor and satisfying crunch, this roll proves that you don’t need dozens of ingredients to create something truly delicious. It’s light, refreshing, and a fantastic way to showcase the quality of your sushi rice. Let’s roll!

Ingredients

• Rice Prep Time: Up to 1½ hoursSushi Prep Time: 15 minutesMakes 4 rolls (24 pieces)
• Four 4 x 7-in / 10 x 18-cm nori sheets
• 2 cups / 400 g prepared sushi rice (Traditional, Brown, Quinoa, or Multi-Grain)
• 2 Japanese cucumbers or 1 English cucumber, deseeded and cut into 4-in / 10-cm matchsticks
• 1 teaspoon toasted sesame seeds
• For the Cucumber Mint Variation
• 1 teaspoon tahini
• A handful of fresh mint leaves, torn
• Vegetarian Ponzu Sauce, for dipping

Instructions

1. Place one nori sheet horizontally on a bamboo rolling mat, with the rough side facing up.
2. Dip your fingertips in water and spread about ½ cup / 100 g of the sushi rice in a thin, even layer across the bottom three-quarters of the nori sheet.
3. Arrange one-quarter of the cucumber matchsticks in a horizontal line across the center of the rice. Ensure the cucumber extends to the edges of the nori.
4. Sprinkle ¼ teaspoon of the toasted sesame seeds over the rice. For the Cucumber Mint variation, first smear ¼ teaspoon of tahini across the rice and add a few torn mint leaves before adding the cucumber.
5. Place your thumbs underneath the bamboo mat and use your fingers to hold the fillings in place. Fold the bottom edge of the mat up and over, tucking the edge of the nori just past the cucumber filling.
6. Lift the edge of the mat and continue to roll the nori forward, applying gentle but firm pressure to create a tight cylinder.
7. Shape the roll by gently pressing the top and sides with your fingers over the mat to create a subtle square shape.
8. Set the finished roll seam-side down on a cutting board. Repeat the process to make the remaining three rolls.
9. Using a very sharp knife dipped lightly in water, slice each roll into 6 even pieces. Serve immediately.

Nutritional Information

• A Note on Nutrition
• is an estimate and will vary depending on the type of rice and specific used. This recipe is naturally vegan, gluten-free (ensure tamari is used if making your own ponzu), and low in fat.

Pro Tips

• for Perfect Cucumber Rolls
• If using standard garden cucumbers, be sure to peel them first to remove any bitter skin.
• Keep a small bowl of water (tezu) nearby to wet your fingertips. This prevents the sticky sushi rice from clinging to your hands while spreading.
• For clean, sharp cuts, use a very sharp knife and dip the blade lightly in water between each slice to prevent sticking.
• Don’t overfill your rolls. A thin layer of rice and a neat line of fillings are key to a roll that holds together perfectly.
• Apply gentle, even pressure as you roll. This creates a tight cylinder that won’t fall apart, without squishing the delicate inside.

FAQ

Q: How can I add more protein to this vegetarian cucumber roll
A: To make this a more filling vegetarian meal, you can easily add protein. Include a line of pan-fried firm tofu strips, edamame beans, or creamy avocado alongside the cucumber before rolling. A sprinkle of hemp seeds over the rice also adds a nice protein boost.

Q: What are some other vegetarian fillings I can use instead of cucumber
A: This recipe is a great base for creativity. For other delicious vegetarian fillings, try using strips of avocado, pickled daikon radish (oshinko), steamed asparagus, bell pepper, or even sweet potato tempura for a satisfying crunch.

Q: Can I make these vegetarian sushi rolls ahead of time
A: Sushi is best enjoyed fresh for optimal texture, as the rice can harden and the nori can soften in the fridge. If you must prepare them in advance, roll them but do not slice them. Wrap each uncut roll tightly in plastic wrap and refrigerate for no more than 4-6 hours. Slice just before serving.

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