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Baked chicken breasts coated in browned cheese inside a white ceramic baking pan.

Greek Yogurt Chicken Casserole

Thin chicken breasts are coated in a seasoned yogurt and cheese mixture and baked until golden.
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Course Main Course
Cuisine American
Servings 4 servings

Ingredients
  

  • 4 boneless skinless chicken breasts, pounded thin, about 1.5 lb / 680 g
  • 1 cup plain Greek yogurt 240 g
  • 1 tablespoon Dijon mustard
  • 3/4 cup shredded extra sharp white cheddar cheese divided, 85 g
  • 1/2 cup grated Parmesan cheese divided, 45 g
  • 1 tablespoon cornstarch
  • 1 teaspoon garlic powder
  • 1 teaspoon dried oregano
  • 1/2 teaspoon kosher salt
  • 1/2 teaspoon black pepper

Instructions
 

  • Preheat the oven to 400°F (200°C). Lightly grease a 9x13-inch baking dish with oil or cooking spray.
  • Place the thinly pounded chicken breasts in a single layer in the prepared baking dish.
  • In a medium bowl, combine the Greek yogurt, mustard, cornstarch, garlic powder, oregano, salt, and black pepper.
  • Stir half of the white cheddar cheese and half of the Parmesan cheese into the yogurt mixture.
  • Spread the yogurt mixture evenly over the top of each chicken breast.
  • Sprinkle the remaining cheddar and Parmesan cheese over the chicken.
  • Bake uncovered for 30 minutes. Check the chicken with a meat thermometer to ensure the internal temperature reaches 165°F (74°C).
  • Optional: Place the dish under the broiler for 2 to 3 minutes to brown the cheese on top.

Notes

Food safety: Always use a meat thermometer to check that the thickest part of the chicken has reached a safe internal temperature of 165°F (74°C).
Keep a close eye on the dish if you choose to broil at the end. The cheese can go from browned to burnt in less than a minute.
Avoid regular plain yogurt. It has a higher water content and will make the casserole watery.
Keyword baked chicken, chicken dinner, easy casserole, greek yogurt chicken casserole, low carb