Prepare the Marinade: In a medium bowl, whisk together olive oil, cumin, chili powder, paprika, garlic powder, lime juice, salt, and pepper. Coat fish fillets generously with marinade and let sit for about 15 minutes.

Grill the Fish: Preheat grill to medium-high heat. Place marinated fish on the grill and cook for about 3-4 minutes on each side until it flakes easily. Let it rest before breaking into chunks.

Make the Slaw: In a large mixing bowl, combine shredded cabbage, carrots, apple cider vinegar, olive oil, lime juice, salt, and pepper. Toss until well coated and set aside.

Prepare Cauliflower Rice: Heat a skillet over medium heat with olive oil. Add cauliflower rice and sauté for about 5-7 minutes until tender.

Assemble Bowls: Layer each bowl with cauliflower rice, grilled fish chunks, slaw, avocado, cherry tomatoes, and red onion.

Dress and Serve: Drizzle additional lime juice or cilantro lime dressing and serve immediately with lime wedges.