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Home » Recipes » Dinner

Easy Tuna and Cauliflower Rice in 20 Minutes

A girl with a pink apron and a mug leaning against a kitchen counter.
Developed and tested by: by Carissa Erzen on Aug 14, 2021 · Updated: Feb 13, 2026 · This post may contain affiliate links · 2 Comments

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This easy tuna and cauliflower rice is so simple and quick, I can make it in between meetings on busy weekdays. Cilantro lime cauliflower rice is cooked on the stove in 10 minutes (no steaming required!) And packaged tuna with chopped bell pepper, creamy Greek yogurt, and spices keep things effortlessly delicious.

A hand squeezing a lime's juice onto a plate of tuna, bell pepper, and avocado.

The Easiest Weekday Lunch I Make on Repeat!

A lot of times when I'm working from home, I only have like 20 minutes to get lunch ready and eaten before my next meeting. Which is why I created this easy weekday meal that can be ready in under half and hour! Top it with avocado slices, a squeeze of fresh lime juice, and cilantro for bright and fresh flavors.

I've tried a lot of different cauliflower rice recipes, since some can be dry & tough while others create a mushy mess. And while you can buy a bag of frozen cauliflower rice and nuke it in the microwave, the slightly longer (and in my opinion, more delicious) method is to pulverize a head of cauliflower in a food processor & cook it on the stove for a quick ten minutes in butter or olive oil.

Seriously, this easy tuna and cauliflower rice is the perfect weeknight recipe to get lunch or dinner on the table in just 20 minutes. You can also make a large batch of the cilantro lime cauliflower rice and have it prepped in the fridge for the week, since it stays softer than regular rice & tastes great hot or cold.

Two plates of tuna and cauliflower rice next to a plate with just the tuna and bell pepper mixture.

I love cooking meals with seafood and fish, since they cook so quickly. If you're looking for even more easy seafood recipes, try my baked salmon with pesto butter, and Japanese shrimp curry.

Ingredients

  • Tuna - It is important to note that tuna is a commonly over-fished animal. I like to refer to the site Seafood Watch to know which tuna is the safest to buy both for the environment and the fish.
  • Bell peppers - You can substitute any raw or cooked vegetables you have on hand or that are in season.
  • Greek yogurt - Makes the tuna mixture extra creamy.
  • Salt & Pepper
  • Red Chili Flakes - Optional to add a little kick of heat
  • Avocado
  • Cauliflower - While you can swap in regular rice, I find cauliflower rice tastes better with tuna, and keeps me feeling fuller, thanks to all that fiber.
  • Olive oil
  • Garlic
  • Lime - Use fresh lime. The bottles of pre-squeezed lime juice contain all kinds of chemical preservatives that can ruin the flavor of your meal.
  • Cilantro
A plate of tuna and cauliflower rice topped with avocado slices and a lime wedge.

Easy Tuna and Cauliflower Rice

developed & tested by:

Carissa Erzen
This easy tuna and cauliflower rice is simple and quick, ready in under half an hour. Homemade cauliflower rice is made on the stove in 10 minutes (no steaming required!) And packaged tuna with chopped bell pepper, creamy Greek yogurt, and spices keeps things effortlessly delicious.
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Prep Time 10 minutes mins
Cook Time 10 minutes mins
Total Time 20 minutes mins
Course Main Course
Cuisine American, Mexican
Servings 4 servings
Calories 241 kcal

Ingredients
  

Tuna Taco Bowls

  • 10 ounces tuna, packaged or canned
  • 2 bell peppers, roughly diced (your colors of choice)
  • ¼ cup Greek yogurt
  • ¼ teaspoon salt
  • ¼ teaspoon ground black pepper
  • ¼ teaspoon red chili flakes (optional)
  • 1 avocado, sliced (for topping)

Cilantro Lime Cauliflower Rice

  • 1 head cauliflower
  • 1 Tablespoon olive oil
  • 1 clove garlic, minced
  • ¼ teaspoon salt
  • 1 lime, cut into wedges (for topping)
  • cilantro, chopped (for topping)

Instructions
 

  • In a large mixing bowl, combine the tuna, diced bell peppers, Greek yogurt, salt, pepper and chili flakes. Set aside.
  • Roughly chop a head of cauliflower and pulverize it in a food processor or blender until no really large chunks remain. It should look somewhat similar to white rice.
  • Heat the olive oil in a large skillet on medium-high heat. Add the garlic and cook for 1-2 minutes, until it is fragrant but not browned.
  • Add the pulverized cauliflower and salt, and stir everything together. Cover the skillet with a lid and allow the cauliflower to cook until it is soft, about 8 to 10 minutes.
  • To serve, add some of the tuna mixture and the cauliflower rice on a plate. Top with avocado slices, fresh lime juice, and cilantro. Enjoy!

Nutrition

Serving: 1 servingCalories: 241kcalCarbohydrates: 18gProtein: 19gFat: 12gSaturated Fat: 2gPolyunsaturated Fat: 2gMonounsaturated Fat: 8gTrans Fat: 0.003gCholesterol: 26mgSodium: 502mgPotassium: 966mgFiber: 8gSugar: 6gVitamin A: 2023IUVitamin C: 156mgCalcium: 77mgIron: 2mg
Keyword cilantro lime cauliflower rice, tuna
Did you make this recipe?Leave a comment below - I love hearing from you!

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About Carissa Erzen

Growing up in Germany, I fell head-over-heels in love with ALL the German baked goods, from Lebkuchen to pretzels. Now I'm the founder, recipe developer, and food photographer behind Humbly Homemade, where I test and share German sweets lovingly created from scratch. So pull up a chair, and stay a while!

Comments

  1. Yum-number1 says

    August 24, 2021 at 6:21 pm

    I like it when there's the word “easy” in your recipes and when it looks delicious which is ALWAYS ❤️

    Reply
    • strawberryandcream says

      September 15, 2021 at 9:50 am

      This one is crazy easy! Let me know if you try it!

      Reply

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A girl in a pink apron sitting on a kitchen counter.

Hello, I'm Carissa!

I'm the founder, recipe developer, and food photographer behind Humbly Homemade. Inspired by my childhood growing up in Germany, I share recipes of delicious German bakes from scratch.

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