Quick Recipe Version (TL;DR)
Quick Ingredients
- 1 cup (200 g) sushi rice (short-grain Japanese rice)
- 1 1/4 cups (300 g) water
- 2 tbsp rice vinegar
- 1 tbsp granulated sugar
- 1/2 tsp fine salt
- 6 oz (170 g) imitation crab, shredded (or 6 oz/170 g cooked shrimp, chopped)
- 1/2 medium cucumber, diced (about 1 cup / 130 g)
- 1 medium avocado, diced
- 2 tbsp mayonnaise
- 1 to 2 tsp sriracha
- 1 tsp water (to thin sauce)
- 1 tsp toasted sesame seeds
- 1/2 cup crushed seaweed snacks (about 10–12 snack sheets, crushed)
- Optional: 2 tsp soy sauce, for serving
Do This
- 1. Rinse 1 cup sushi rice until water runs mostly clear; drain well.
- 2. Microwave rice + 1 1/4 cups water in a covered microwave-safe bowl: 5 minutes on High, then 10 minutes on 50% power; rest covered 10 minutes.
- 3. Stir together rice vinegar, sugar, and salt; fold into hot rice and cool 5 minutes.
- 4. Mix mayo + sriracha + 1 tsp water for a light drizzle.
- 5. Build bowls: rice, crab (or shrimp), cucumber, and avocado.
- 6. Drizzle sriracha-mayo; finish with sesame seeds and crushed seaweed snacks.
Why You’ll Love This Recipe
- All the California roll flavors without any rolling, mats, or tricky slicing.
- Microwave sushi rice comes together fast and still tastes properly seasoned.
- Easy to customize (crab or shrimp, mild or spicy, extra crunchy toppings).
- Great weeknight bowl that feels fresh, light, and restaurant-inspired.
Grocery List
- Produce: 1/2 medium cucumber, 1 medium avocado (optional add-ons: scallions, lime, cilantro)
- Dairy: mayonnaise
- Pantry: sushi rice (short-grain), rice vinegar, granulated sugar, fine salt, sriracha, toasted sesame seeds, seaweed snack sheets, soy sauce (optional)
- Seafood: imitation crab (surimi) or cooked shrimp
Full Ingredients
Microwave Sushi Rice
- 1 cup (200 g) sushi rice (short-grain Japanese rice)
- 1 1/4 cups (300 g) water
- 2 tbsp rice vinegar
- 1 tbsp granulated sugar
- 1/2 tsp fine salt
California Roll Bowl Toppings
- 6 oz (170 g) imitation crab, shredded (or 6 oz/170 g cooked shrimp, chopped)
- 1/2 medium cucumber, diced (about 1 cup / 130 g)
- 1 medium avocado, diced
- 1 tsp toasted sesame seeds
- 1/2 cup crushed seaweed snacks (about 10–12 snack sheets, crushed)
- Optional: 2 tsp soy sauce, for serving
Light Sriracha-Mayo Drizzle
- 2 tbsp mayonnaise
- 1 to 2 tsp sriracha (use 1 tsp for mild, 2 tsp for medium-spicy)
- 1 tsp water (to thin to a drizzle)

Step-by-Step Instructions
Step 1: Rinse and drain the sushi rice
Place 1 cup (200 g) sushi rice in a fine-mesh sieve. Rinse under cool running water, stirring the rice with your fingers, until the water runs mostly clear (usually 45–60 seconds). Let it drain well for 1 minute so you don’t start with excess water.
Step 2: Microwave the rice (covered)
Add the drained rice to a medium microwave-safe bowl (at least 2-quart capacity to prevent boil-overs). Pour in 1 1/4 cups (300 g) water and stir once.
Cover with a microwave-safe lid or plate (leave it slightly vented so steam can escape). Microwave on High (100%) for 5 minutes, then reduce power to 50% and microwave for 10 minutes.
Important: Keep the bowl covered and let the rice rest for 10 minutes after microwaving. This finishing steam is what makes the texture tender instead of crunchy.
Step 3: Season the rice like sushi rice
While the rice rests, stir together in a small bowl: 2 tbsp rice vinegar, 1 tbsp sugar, and 1/2 tsp fine salt until the sugar dissolves (about 30 seconds).
After the 10-minute rest, uncover the rice and gently fluff with a fork or rice paddle. Drizzle the vinegar mixture over the hot rice and fold gently until evenly coated. Let the rice cool for 5 minutes so it’s warm (not piping hot) when you add the toppings.
Step 4: Prep the bowl toppings
While the rice cools, prep your toppings:
Shred or chop 6 oz (170 g) imitation crab (or chop 6 oz cooked shrimp). Dice 1/2 medium cucumber (about 1 cup / 130 g). Dice 1 medium avocado.
Crush seaweed snack sheets into small flakes (you want pieces you can sprinkle, not a fine powder). Measure 1/2 cup crushed.
Step 5: Mix a light sriracha-mayo drizzle
In a small bowl, whisk together 2 tbsp mayonnaise, 1 to 2 tsp sriracha, and 1 tsp water until smooth and drizzleable. If you want it thinner, add another 1/2 tsp water.
Step 6: Assemble the sushi bowls
Divide the seasoned rice between 2 bowls. Arrange the imitation crab (or shrimp), cucumber, and avocado on top in sections so each bite gets a little of everything.
Step 7: Finish with sesame, seaweed, and sauce
Drizzle the sriracha-mayo over each bowl. Sprinkle with 1 tsp toasted sesame seeds (total for both bowls) and a generous pinch of crushed seaweed snacks.
Taste and, if you like, finish with soy sauce (about 1 tsp per bowl) right before eating.
Pro Tips
- Microwave power varies: These times are designed for a 1000-watt microwave. If your rice seems a little firm after resting, microwave at 50% power for 2 more minutes, then rest covered 5 minutes.
- Prevent boil-overs: Use a bowl that’s at least 2-quart capacity and keep the cover slightly vented.
- Best rice texture: Season the rice while it’s hot so it absorbs the vinegar mixture evenly, then cool briefly so the avocado doesn’t get warm and mushy.
- Seaweed timing: Add crushed seaweed right before eating to keep it crisp.
- Clean avocado cubes: Dice avocado in the skin, then scoop with a spoon for neat pieces.
Variations
- Spicy “crab” bowl: Mix the shredded imitation crab with 1 tbsp mayonnaise and 1 tsp sriracha, then pile it on top and skip the drizzle (or drizzle lightly).
- Shrimp California bowl: Use 6 oz cooked shrimp (thawed if frozen), chopped. Add a squeeze of 1 tsp fresh lime juice over the shrimp for a brighter flavor.
- Extra crunch bowl: Add 2 tbsp panko breadcrumbs toasted in a dry skillet for 2–3 minutes (optional), or top with extra cucumber and sesame.
Storage & Make-Ahead
For the freshest “sushi” vibe, these bowls are best eaten right after assembling.
Make-ahead: You can cook and season the rice up to 24 hours ahead. Cool completely, then store airtight in the refrigerator. For best texture, re-warm gently in the microwave at 50% power for 45–60 seconds (add 1 tsp water and cover) to take the chill off before assembling.
Storage: Store leftovers in separate containers if possible (rice, toppings, and sauce) for up to 2 days. Add seaweed snacks only at serving time so they stay crisp.
Nutrition (per serving)
Approximate, per bowl (using imitation crab and all toppings): 630 calories, 20 g protein, 86 g carbohydrates, 24 g fat, 6 g fiber, 980 mg sodium. Values will vary based on brand of crab, mayo, and any added soy sauce.
