Keto Mexican Cauliflower Rice

Prep: 20 minCook: 20 min6 servingsmediumMexican
Mexican Cauliflower Rice with Peppers and Tomatoes

A flavorful low-carb alternative to traditional rice that captures the essence of Mexican cuisine with sautéed onions, bell peppers, garlic, and tomatoes. The cauliflower is pulsed into rice-sized pieces and cooked until tender but still maintaining a slight bite. Finished with fresh cilantro and olive oil, this versatile side dish pairs perfectly with tacos, grilled meats, or can stand alone as a light meal. The combination of tomato paste and fresh tomatoes creates a rich, savory base while chili flakes add a gentle heat that can be adjusted to taste.

Ingredients

6 servings
  • 24 ounces cauliflower, florets only
    broccoli rice1:1low-carbpaleo

    similar texture

    Full guide →
  • 2 tbsp olive oil, or avocado oil, butter or ghee
    avocado oil1:1ketopaleo

    higher smoke point

    Full guide →
  • 1 ounce red onion, diced
  • 2 ounces red bell pepper, diced
    yellow bell pepper1:1universal

    similar sweetness

    Full guide →
  • 2 cloves garlic, minced
  • 2 tbsp tomato paste
  • 3 ½ ounces tomato, or 2-3 Roma tomatoes, chopped
  • ½ tsp salt, or to taste
  • ½ tsp chili flakes, or to taste
  • ¼ tsp pepper
    yellow bell pepper1:1universal

    similar sweetness

    Full guide →
  • 2 tbsp extra virgin olive oil, for drizzling on top after cooking
    avocado oil1:1ketopaleo

    higher smoke point

    Full guide →
  • 2 tbsp cilantro, or parsley, to garnish
    parsley1:1universal

    milder flavor

    Full guide →
  • lime wedges, to serve(optional)

Instructions

  1. 1

    Pulse cauliflower florets in food processor with S blade until rice-sized

  2. 2

    Heat oil in non-stick or cast iron pan

  3. 3

    Add diced onion and peppers, cook 2-3 minutes on medium heat until soft and onions are translucent

  4. 4

    Add garlic, cook 30 seconds

  5. 5

    Add cauliflower rice, cook 5-6 minutes until al dente

  6. 6

    Add tomato paste, tomatoes, salt, chili flakes, and pepper, sauté 1 minute until combined

  7. 7

    Drizzle with olive oil and garnish with cilantro before serving

Tips

Tip 1

Use the S blade attachment in your food processor for the most even cauliflower rice texture

Tip 2

Cook cauliflower rice just until al dente to avoid mushiness - it should still have a slight bite

Tip 3

Adjust chili flakes and salt to your preference, starting with less and adding more as needed

Good to Know

Storage

refrigerate in airtight container up to 3 days

Make Ahead

can be prepped 1 day ahead, reheat gently before serving

Serve With

hot as a side dish with Mexican mains or as a light meal

Common Mistakes

Watch

don't over-process cauliflower to avoid mushy texture

Watch

avoid overcooking cauliflower rice to maintain texture

Watch

cook on medium heat to prevent burning garlic

Substitutions

cauliflower
broccoli rice1:1low-carbpaleo

similar texture

Full guide →
olive oil
avocado oil1:1ketopaleo

higher smoke point

Full guide →
cilantro
parsley1:1universal

milder flavor

Full guide →
red bell pepper
yellow bell pepper1:1universal

similar sweetness

Full guide →
Find more substitutions →

FAQ

Can I use frozen cauliflower rice instead?

Yes, thaw and drain frozen cauliflower rice thoroughly before cooking. You may need to cook it slightly longer to remove excess moisture.

What if I don't have a food processor?

You can use a box grater to grate the cauliflower florets, or buy pre-riced cauliflower from the store to save time.

How long will this keep in the refrigerator?

Store covered in the refrigerator for up to 3 days. Reheat gently in a pan or microwave, adding a splash of oil if needed.