Prep the chicken: If using rotisserie, remove skin and bones, then shred. If cooking from scratch, poach chicken breasts in salted water until cooked through, cool, and shred.
Sauté the veggies: Heat 1 tablespoon oil in a large skillet over medium heat.
Add onion and bell pepper. Cook 4–5 minutes until softened. Stir in garlic for 30 seconds.
Warm the sauce: Pour in the enchilada sauce, green chiles (if using), and a pinch each of chili powder, cumin, smoked paprika, oregano, salt, and pepper.
Simmer 2–3 minutes to bloom the spices.
Make it creamy: Reduce heat to low. Whisk in the cream cheese until fully melted and the sauce is smooth and slightly thick.
Add the chicken: Fold in the shredded chicken. Simmer 3–4 minutes, stirring, until the meat is coated and heated through.
Taste and adjust seasoning.
Cook the cauliflower rice: In a second skillet, heat remaining 1 tablespoon oil over medium-high. Add cauliflower rice, season with salt and pepper, and cook 5–7 minutes, stirring, until tender with a little bite and most moisture has evaporated.
Cheesy finish: Sprinkle 1 to 1.5 cups shredded cheese over the chicken mixture. Cover the pan for 2–3 minutes to melt, or broil in an oven-safe skillet until bubbly.
Assemble bowls: Spoon cauliflower rice into bowls.
Top with a generous scoop of the cheesy chicken.
Garnish: Add cilantro, avocado, jalapeño, a dollop of sour cream, and a squeeze of lime. Serve hot.