Spicy Tuna Bowls with Cauliflower Rice Meal Prep Recipe
If you’re searching for a healthy, vibrant, and ultra-satisfying lunch you can enjoy all week, look no further than these Spicy Tuna Bowls with Cauliflower Rice Meal Prep. This colorful dish takes inspiration from your favorite sushi flavors and transforms them into a nutrient-packed, make-ahead lunch you’ll actually look forward to every single day. Imagine savory, creamy spicy tuna piled over light and tangy cauliflower rice, plus crisp cucumber, sesame seeds, and scallions—all ready to grab-and-go from your fridge. It’s a meal prep win that never gets old!

Ingredients You’ll Need
The beauty of Spicy Tuna Bowls with Cauliflower Rice Meal Prep is how each ingredient brings its own magic to the dish. From the cauliflower rice base to the zippy sriracha mayo, every component has a job to do—whether it’s giving you crunch, creaminess, color, or that crave-worthy touch of heat.
- Cauliflower rice (3 cups): The foundation—light, fluffy, and takes on the sushi vibe with rice vinegar.
- Seasoned rice vinegar (1 tbsp): Adds tang and transforms plain cauliflower rice into a sushi-style base.
- Canned tuna (3 x 5 oz cans, drained): The protein star, bringing heartiness and staying power to your bowls.
- Persian cucumber (thinly sliced, 1): Crunchy, refreshing, and balances the spiciness perfectly.
- Toasted black sesame seeds (1/2 tbsp): For color contrast and a subtle nutty flavor.
- Toasted white sesame seeds (1/2 tbsp): Brings toasty aroma and another layer of crunch.
- Green scallions (2, thinly sliced): Sprinkle over the tuna for a burst of freshness and bright color.
- Mayonnaise (3/4 cup): Gives the spicy tuna that luscious, creamy texture we all love.
- Sriracha sauce (1 1/2 tbsp): Delivers signature heat—feel free to adjust to your own spice preference.
- Toasted sesame oil (1 tsp): A little goes a long way for deep, complex, and truly irresistible flavor.
How to Make Spicy Tuna Bowls with Cauliflower Rice Meal Prep
Step 1: Prepare the Cauliflower Rice
Start by steaming the cauliflower rice until it’s just barely tender—this keeps the “rice” fluffy and prevents sogginess later. While it’s still hot, drizzle in the seasoned rice vinegar and mix well. Taste and add more vinegar if you like it extra tangy. Spoon a generous cup of this sushi-inspired base into each of your meal prep containers.
Step 2: Mix the Spicy Tuna
Grab a large bowl for this step. Combine the mayonnaise, sriracha sauce, and sesame oil, stirring until smooth and evenly blended. This zesty, spicy mayo is what takes the tuna from simple pantry staple to crave-worthy. Add your drained tuna, then mix until every flake is coated in creamy goodness. Go ahead and taste—add a little more sriracha if you want an extra kick! Divide the spicy tuna mixture evenly among the meal prep containers, laying it over the cauliflower rice.
Step 3: Assemble and Garnish
Next, arrange thin slices of Persian cucumber on one side of each container for a refreshing crunch. Sprinkle both black and white toasted sesame seeds onto the rice and cucumbers for nutty flavor and beautiful visual appeal. Lastly, top the spicy tuna with a generous pinch of sliced scallions. That gorgeous pop of green brings everything together.
How to Serve Spicy Tuna Bowls with Cauliflower Rice Meal Prep

Garnishes
The finishing touches matter! Try a little extra sriracha drizzled on top if you like things spicy, or a squeeze of fresh lime for citrusy brightness. Add pickled ginger or a sprinkle of furikake if you want to lean further into sushi vibes. These garnishes make every bite feel special and customizable.
Side Dishes
Spicy Tuna Bowls with Cauliflower Rice Meal Prep are complete on their own, but if you’re serving guests, consider pairing with miso soup or an edamame salad. A side of roasted seaweed snacks is also a fun and textural partner, letting you scoop up bites as you eat!
Creative Ways to Present
Try serving the bowls in a wide, shallow bowl to show off all those colorful layers and garnishes. If you’re feeling playful, pack everything into a bento box for ultimate lunchbox appeal. Another idea: serve the spicy tuna and fixings over a leafy salad for a low-carb, sushi-inspired salad bowl that keeps things fresh and light.
Make Ahead and Storage
Storing Leftovers
Your Spicy Tuna Bowls with Cauliflower Rice Meal Prep will stay perfectly fresh for up to 3 days when sealed in airtight containers in the fridge. Keep garnishes like scallions and sesame seeds separate if you want them extra crisp at serving time.
Freezing
Freezing isn’t ideal for these bowls—the texture of the mayo and vegetables can suffer. If you’re prepping far ahead, freeze just the plain cauliflower rice and tuna separately, then thaw and mix with fresh sauce, cucumbers, and garnishes when ready to enjoy.
Reheating
For best texture and flavor, enjoy the Spicy Tuna Bowls with Cauliflower Rice Meal Prep chilled or at cool room temperature. If you prefer a warm base, microwave just the cauliflower rice before topping with the tuna and veggies, but never microwave the full assembled bowl, as the mayo-based tuna can become oily or separate.
FAQs
Can I use fresh tuna instead of canned?
Absolutely! If you have sushi-grade fresh tuna, you can dice it and toss with the spicy mayo mixture instead of using canned. Just keep in mind the raw version is best eaten within a day or two for safety and freshness.
Is this recipe gluten-free?
Yes! All the core ingredients in Spicy Tuna Bowls with Cauliflower Rice Meal Prep are gluten-free—but do double-check your brands of sesame oil, rice vinegar, and sriracha to be sure they’re safe for your needs.
How can I make the bowls less spicy?
Just reduce the amount of sriracha in the mayo mixture, or leave some on the side for drizzling so everyone can adjust the heat level to their taste.
What are some good protein alternatives?
If tuna isn’t your go-to, try swapping in cooked chicken breast, canned salmon, or even shredded rotisserie chicken for an equally delicious, protein-packed meal prep option.
Can I double the recipe?
Totally! This meal prep is easily scalable. Just double all ingredients and divide the finished bowls among more containers. It’s perfect for feeding a household or stocking your fridge for extra-busy weeks.
Final Thoughts
If you’re ready to turn weekday lunches into something exciting and nourishing, give Spicy Tuna Bowls with Cauliflower Rice Meal Prep a go. With a little prep, you’ll have vibrant, flavor-packed lunches you genuinely look forward to—no sad desk salads in sight!
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Spicy Tuna Bowls with Cauliflower Rice Meal Prep Recipe
- Total Time: 25 minutes
- Yield: 3 servings 1x
- Diet: Gluten Free
Description
These Spicy Tuna Bowls with Cauliflower Rice Meal Prep are a delicious and easy meal prep option that packs a flavorful punch. With tender cauliflower rice, spicy tuna, and crunchy cucumbers, this dish is perfect for a quick and satisfying lunch.
Ingredients
Cauliflower Rice:
- 3 cups cauliflower rice
- 1 tbsp seasoned rice vinegar
Spicy Tuna:
- 3 (5 oz) cans of tuna (drained)
- 1/2 tbsp toasted black sesame seeds
- 1/2 tbsp toasted white sesame seeds
- 2 green scallions (thinly sliced)
Spicy Mayonnaise:
- 3/4 cup mayonnaise
- 1 1/2 tbsp sriracha sauce
- 1 tsp toasted sesame oil
Instructions
- Cauliflower Rice: Steam cauliflower rice until tender. Drizzle with rice vinegar and mix well. Divide into meal prep containers.
- Spicy Tuna: Mix spicy mayonnaise ingredients. Coat tuna in the mixture. Add tuna to containers.
- Assembly: Add cucumbers to each container. Garnish rice and cucumbers with sesame seeds. Top tuna with scallions. Refrigerate for up to 3 days.
- Prep Time: 15 minutes
- Cook Time: 10 minutes
- Category: Lunch, Meal Prep
- Method: Mixing, Steaming
- Cuisine: Asian
Nutrition
- Serving Size: 1 bowl
- Calories: 320
- Sugar: 3g
- Sodium: 680mg
- Fat: 22g
- Saturated Fat: 3g
- Unsaturated Fat: 18g
- Trans Fat: 0g
- Carbohydrates: 8g
- Fiber: 3g
- Protein: 25g
- Cholesterol: 55mg
Keywords: Spicy Tuna Bowl, Cauliflower Rice, Meal Prep, Lunch, Asian, Gluten Free