Make the marinade: In a bowl, mix chipotle in adobo, oil, garlic, cumin, smoked paprika, oregano, lime zest and juice, salt, and pepper until combined.
Marinate the chicken: Add chicken to the bowl (or a zip-top bag), coat well, and refrigerate for at least 30 minutes. For maximum flavor, marinate up to 8 hours.
Prep the lime crema: Whisk sour cream with lime juice, a pinch of salt, and just enough water to make it drizzle-able.
Set aside in the fridge.
Cook the cauliflower rice: Heat 1 tablespoon oil in a large skillet over medium-high heat. Add riced cauliflower, season with salt and pepper, and sauté 5–7 minutes until tender with a little bite. Squeeze in a touch of lime and a sprinkle of cilantro, if you like.
Transfer to bowls.
Cook the chicken: Heat the same skillet (wipe if needed) over medium-high heat with a bit more oil. Add chicken and cook 5–6 minutes per side for thighs (4–5 minutes per side for breasts), until browned and cooked through. Let rest 3–5 minutes, then slice or chop.
Assemble the bowls: Start with a bed of cauliflower rice.
Top with chicken, lettuce, tomatoes, red onion, avocado, cilantro, and cheese. Add pickled jalapeños for heat.
Finish with lime crema: Drizzle crema over the bowl and add a squeeze of fresh lime. Taste and adjust salt, lime, or heat as needed.