Combine the vegetable oil, chopped chipotle peppers in adobo, garlic powder, cumin, dried oregano, and black pepper in a small bowl and stir to combine. Place the chicken in a large zip top plastic bag and add the marinade. Zip the bag and mix the chicken into the marinade. Place it into the fridge and let it marinate for at least 1 hour.
Heat an indoor or outdoor grill to about 400 degrees F (medium high heat). Place the chicken onto the grill and grill 5 to 6 minutes per side, until the chicken is cooked. Remove the chicken from the grill and let rest for 10 minutes. Chop the chicken into small bite sized pieces and use as needed.
Make sure your cauliflower is fully dry. Place the cauliflower in a food processor and pulse until it has the texture of rice. Work in batches if necessary and don’t over process or it will get mushy. In a large skillet, heat 1 teaspoon of olive oil over medium heat. Add the cauliflower and sauté until heated through, about 5 minutes. Season with salt, pepper and a squeeze of lime juice to help remove any bitterness from the raw cauliflower. Remove from the skillet and portion the “rice” into 4 serving bowls.
To the bowls add the chicken, black beans, charred corn, avocado, and cilantro, pico, cheese and serve with limes.