Prep the chicken: Pat chicken breasts dry. If thick, slice horizontally to make even cutlets, about 1/2–3/4 inch thick.
Season both sides with salt, pepper, smoked paprika, and onion powder.
Crisp the bacon: In a large skillet over medium heat, cook chopped bacon until crisp. Transfer bacon to a plate with a slotted spoon. Leave about 1–2 tablespoons of bacon fat in the pan.
Sear the chicken: Add a little oil or butter if needed.
Sear chicken 4–5 minutes per side until golden and mostly cooked through. Remove to a plate and tent with foil.
Sauté jalapeños and garlic: In the same pan, add chopped jalapeños. Cook 2–3 minutes until fragrant and slightly softened.
Stir in garlic and cook 30 seconds.
Build the sauce: Lower heat to medium-low. Whisk in cream cheese until melted and smooth. Pour in heavy cream and chicken broth.
Simmer gently 2–3 minutes, stirring, until slightly thickened.
Add cheese: Stir in shredded cheddar or pepper jack until melted. Taste and adjust salt and pepper. For more heat, add a few jalapeño seeds or a pinch of cayenne.
Finish the chicken: Return chicken and any juices to the skillet.
Spoon sauce over the top. Simmer 3–5 minutes until chicken reaches 165°F internally and the sauce coats the back of a spoon.
Add bacon and brighten: Stir in most of the bacon, saving a little for garnish. Squeeze in a bit of lime juice to cut the richness, if you like.
Garnish and serve: Top with remaining bacon and chopped cilantro or green onions.
Serve hot with a low-carb side like cauliflower rice, sautéed greens, or roasted broccoli.