Prep the chicken: Pat chicken dry. In a small bowl, mix 2 teaspoons chili powder, 1 teaspoon cumin, 1 teaspoon smoked paprika, 1 teaspoon garlic powder, 1/2 teaspoon onion powder, 1/2 teaspoon oregano, 1 teaspoon salt, and 1/2 teaspoon black pepper. Coat chicken with 1 tablespoon oil and the spice blend.
Sear the chicken: Heat a large skillet over medium-high heat with 1 tablespoon oil.
Cook chicken 5–7 minutes per side (thighs may need a bit longer) until internal temp reaches 165°F (74°C). Rest 5 minutes, then slice or cube.
Sauté the peppers and onions: In the same skillet, add a little more oil if needed. Cook sliced bell pepper and red onion with a pinch of salt for 4–6 minutes until tender-crisp with a bit of char.
Remove and set aside.
Cook the cauliflower rice: Add 1 tablespoon oil to the skillet. Stir in cauliflower rice, 1/2 teaspoon salt, a pinch of cumin and smoked paprika. Sauté 5–7 minutes until hot and slightly golden.
Squeeze in a little lime for brightness.
Assemble the bowls: Start with a bed of chopped greens and a scoop of cauliflower rice. Add sliced chicken, peppers and onions, tomatoes (or salsa), avocado, cheese, and a dollop of sour cream. Sprinkle cilantro and finish with a squeeze of lime.
Adjust to taste: Add hot sauce, extra salt, or more lime as needed.
If you like extra richness, drizzle a teaspoon of olive oil over the bowl.