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A close-up view of OMG Chicken on a plate, sliced, with a green lettuce salad in the background.

OMG Chicken

Tender chicken breasts smothered in a tangy mixture of sour cream and parmesan, then topped with buttery Italian breadcrumbs and baked to perfection.
Course Main Course
Cuisine American, Italian
Keyword easy breakfast casserole recipe, entree, one-pan meal
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 4 servings
Calories 500kcal


  • Oven
  • Baking dish
  • Cooking spray
  • Cutting board
  • Sharp knife
  • 2 small bowls
  • 2 whisks
  • Meat thermometer


  • 4 large chicken breasts approximately 2-3 pounds
  • salt to taste
  • pepper to taste
  • cup sour cream
  • 2 tablespoons mayonnaise
  • ½ cup freshly shredded parmesan cheese
  • ½ cup Italian breadcrumbs
  • 2 tablespoons butter melted
  • chopped fresh parsley optional, for serving


  • Preheat oven to 375° Fahrenheit. Lightly grease baking dish with cooking spray and set aside. Trim chicken breasts; if chicken breasts are very thick, slice them in half to create thinner cutlets.
  • Lightly season all sides of chicken with salt and pepper to taste. Place chicken breasts in greased baking dish, being careful not to stack or overlap if possible.
    Chicken breasts in a large white oval baking dish on a white countertop.
  • In small bowl, whisk together sour cream, mayonnaise, and shredded parmesan until mixture is well combined. Pour mixture over chicken breasts and spread evenly.
    Overhead view of chicken breasts coated with sour cream, mayonnaise, and parmesan cheese in a large baking dish.
  • In second small bowl, whisk together breadcrumbs and melted butter until ingredients are thoroughly combined. Crumble mixture evenly over tops of chicken breasts.
    Overhead view of chicken breasts topped with butter breadcrumbs in a large oval baking dish.
  • Place baking dish in preheated oven. Bake, uncovered, 30 minutes, or until chicken is fully cooked through. Remove baking dish from oven and serve chicken warm with preferred sides and fresh parsley garnish if desired.


  • If the chicken breasts are very thick, they'll take longer to cook and you'll risk them drying out. Slicing them in half (like a hamburger bun) will help them stay tender and moist.
  • Cook until chicken reaches an internal temperature of 165° Fahrenheit.
  • Make it Gluten Free: Use gluten-free breadcrumbs.
  • Make it Keto: Use crushed pork rinds mixed with Italian seasoning instead of using Italian breadcrumbs.


Serving: 1serving | Calories: 500kcal | Carbohydrates: 12g | Protein: 55g | Fat: 25g | Saturated Fat: 10g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 183mg | Sodium: 758mg | Potassium: 909mg | Fiber: 1g | Sugar: 2g | Vitamin A: 493IU | Vitamin C: 3mg | Calcium: 208mg | Iron: 2mg | Net Carbs: 11g