Prepare ingredients: Pat the chicken breast dry and season both sides with 1/2 tsp kosher salt and a pinch of black pepper. Finely chop the onion, mince the garlic, zest and juice the lime, and chop the cilantro. Having everything prepped (mise en place) speeds cooking and ensures even seasoning.

Char the poblanos: Heat a medium skillet or use a gas stovetop on high. Place the whole poblano peppers directly over the flame or in the hot skillet, turning occasionally, until the skin is blackened and blistered on all sides (about 6–8 minutes). Char adds smoky complexity and loosens the skin for easier peeling.

Steam and peel the poblanos: Transfer charred peppers to a bowl and cover tightly with plastic wrap (or place in a sealed paper bag) for 8–10 minutes. The trapped steam loosens the skin so it slips off easily without removing flesh or smoky flavor. After resting, peel off the skin, slit each pepper lengthwise and remove seeds and membranes, leaving the pepper intact to hold filling. Set aside on a plate.

Sear the chicken to build flavor: Heat 1 tsp of olive oil in a skillet over medium-high heat until shimmering. Sear the seasoned chicken breast 2–3 minutes per side until golden — you are not cooking it through here, just developing color (Maillard reaction) that gives rich flavor to the shredded meat. Remove chicken to a plate.

Finish the chicken gently: Reduce heat to medium, add 1–2 tbsp water to the skillet, return the chicken, cover, and simmer for 6–8 minutes until internal temperature reaches 165°F (74°C). Gentle steaming finishes the chicken without drying it. Remove, let rest 5 minutes, then shred with two forks and toss with a squeeze of half the lime juice and a pinch of salt to keep the meat moist and flavorful.

Build the filling: Wipe the skillet clean, add the remaining 3/4 tbsp olive oil and return to medium heat. Add the chopped onion and sauté 3–4 minutes until translucent; this softens the onion and releases sweetness. Add the minced garlic and sauté 30 seconds—don’t brown the garlic or it will turn bitter. Stir in ground cumin and smoked paprika and toast for 30 seconds to bloom the spices and deepen aroma.

Add cauliflower rice and combine: Add 1.5 cups cauliflower rice to the skillet and cook, stirring, 4–6 minutes until it’s warmed through and any released moisture has evaporated—this concentrates the flavor and prevents a soggy filling. Season with remaining 1/4 tsp kosher salt and remaining pinch of pepper. Stir in the shredded chicken and mix until everything is evenly distributed and heated through—this lets the chicken absorb the spice flavors.

Finish the flavor: Remove the skillet from heat. Stir in chopped cilantro, lime zest and the remaining lime juice (taste and adjust). The citrus and herbs brighten the smoky spices and lift the whole dish.

Stuff the poblanos and reheat: Spoon the warm chicken-cauliflower mixture into each prepared poblano pepper, dividing it evenly (about half the filling per pepper). Return the stuffed peppers to the skillet, cover, and warm on low 2–3 minutes to marry flavors and heat through. Covering traps steam and melts any moisture into the filling without overcooking the pepper.

Serve: Plate the stuffed poblanos, spoon any pan juices over the top, and garnish with extra cilantro and a lime wedge. Serve immediately to enjoy the contrast of the warm, savory filling with the bright citrus and fresh herb notes.