Preheat oven to 450 degrees. Line a large, rimmed baking sheet with foil; set aside.
CAULIFLOWER: Chop cauliflower into bite-sized florets. Place florets into a large bowl and drizzle with avocado or olive oil and gently toss.
SPICE MIX: In a small bowl, combine spices. Sprinkle the spice mix over the cauliflower and gently toss to coat each floret with spices.
Spread the spiced cauliflower over the prepared baking sheet in an even layer and roast for about 25 minutes.
TACO TOPPINGS: While the cauliflower is roasting, prepare all your toppings.
Once the cauliflower is done, simply fill warm tortillas with cabbage, cauliflower, cilantro lime crema, Pico de Gallo, avocado slices, cilantro leaves, and a squeeze of lime, Enjoy!