Preheat the oven to 375°F / 190°C. Lightly grease a 9×13-inch baking dish.
Pat 680 g chicken breasts dry and place them in a single layer in the dish. Season lightly with salt, pepper, and smoked paprika if using.
In a mixing bowl, beat 227 g softened cream cheese until smooth. Stir in 12 g ranch seasoning and 56 g shredded cheddar until fully incorporated. The mixture should be creamy and spreadable.
Spread the cream-cheese mixture over each chicken breast evenly. Use an offset spatula for even coverage.
Sprinkle the remaining 57 g shredded cheddar over the top, then scatter 72 g crumbled bacon across the dish. Press lightly so toppings adhere.
Bake uncovered 25–30 minutes, or until chicken reaches 165°F / 74°C internal temperature. If you want a browned top, broil for 45–90 seconds, watching carefully.
Remove from oven and rest 5 minutes. Garnish with 2 tbsp sliced green onions and serve over cauliflower rice, steamed greens, or in lettuce wraps.