Preheat oven to 425. Line a large rimmed baking sheet with cooking spray. Place cauliflower onto baking sheet and drizzle with the olive oil. Make sure to coat each piece of cauliflower.
In a small bowl, mix together the salt, cumin, garlic powder, paprika, and chili powder. Sprinkle the seasoning mix over the cauliflower. Toss to coat. Roast for about 35-40 minutes, or until the cauliflower becomes golden brown and crisp at the edges.
Top with the cheese, and return to the oven for another 5 minutes to melt the cheese.
Plate the cauliflower, and top with red onion, cilantro, and salsa as desired. Dollop sour cream on top.
Notes
The entire recipe makes 2 servingsThe serving size is 1/2 the recipe