Prepare the Cauliflower Rice

1. Step 1: For fresh cauliflower: Cut cauliflower into florets and pulse in a food processor until it reaches rice-like consistency.
2. Step 2: For frozen cauliflower: Defrost before cooking, draining any excess water.

Sauté the Aromatics

1. Step 1: In a large skillet, heat 1 tablespoon of olive oil over medium heat.
2. Step 2: Add the chopped onion and sauté until softened, about 3-4 minutes.
3. Step 3: Stir in the garlic and cook until fragrant, about 1 minute.

Add the Spices and Tomato Paste

1. Step 1: Add ground cumin, chili powder, and smoked paprika to the skillet. Stir for about 1-2 minutes to allow the spices to bloom and become aromatic.
2. Step 2: Stir in the tomato paste (or diced tomatoes), combining well with the spices and onions.

Cook the Cauliflower Rice

1. Step 1: Add the cauliflower rice to the skillet and stir well to coat with the spice mixture.
2. Step 2: Cook for 5-7 minutes, stirring occasionally, until the cauliflower is tender but still firm. Season with salt and pepper to taste.

Finishing Touches

1. Step 1: Remove from heat and stir in the fresh cilantro and lime juice for added flavor.
2. Step 2: Serve hot with your choice of optional toppings, like diced avocado, shredded cheese, or lime wedges.