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Smothered Cheesy Sour Cream Chicken

Smothered Cheesy Sour Cream Chicken is a sour cream chicken bake where baked chicken breasts are covered in a thick, golden-bubbling topping of cheddar and Parmesan. It’s tangy, rich, and caramelized to a crusty finish across every inch for easy chicken casserole comfort.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 4 servings
Course: Main Dish
Cuisine: American
Calories: 650
Ingredients Equipment Method Notes

Ingredients
  

Chicken
  • 4 boneless skinless chicken breasts
  • Salt
  • pepper
  • garlic powder
  • smoked paprika
Sour Cream Sauce
  • 1 cup sour cream
  • 0.5 cup mayonnaise
  • 1 packet (1 oz) ranch seasoning mix
  • 1 tsp garlic powder
Cheese & Toppings
  • 1.5 cup shredded cheddar cheese divided
  • 0.5 cup Parmesan cheese, grated
  • 6 strips bacon cooked crispy and crumbled
  • Fresh chives for garnish

Equipment

  • 1 sheet pan

Method
 

Prep
  1. Preheat oven to 375°F and grease a 9x13 baking dish.
  2. Season the chicken breasts with salt, pepper, garlic powder, and smoked paprika to taste, then place them in the prepared dish.
Make the topping
  1. Whisk together sour cream, mayonnaise, ranch seasoning mix, and 1 teaspoon garlic powder until smooth.
  2. Spread the sour cream mixture generously over each chicken breast.
Bake
  1. Top with shredded cheddar cheese, Parmesan cheese, and crumbled bacon so the surface is fully covered.
  2. Bake for 28-32 minutes until the topping is golden and bubbly and the internal temperature reaches 165°F; garnish with fresh chives after baking.

Notes

For the best golden-bubbly top, keep the chicken in a single layer so the sauce spreads evenly. Refrigerate leftovers in a sealed container for up to 3 days; freeze is yes for up to 2 months, but topping may soften after thawing. For a lower-fat option, use light sour cream and light mayonnaise while keeping the same bake time and cheese amount to maintain the caramelized crust.