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Melt In Your Mouth Chicken Protein Casserole - Creamy, Cozy, and Packed With Protein

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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 6 servings
Ingredients Method

Ingredients
  

  • Chicken: 2 pounds boneless, skinless chicken breasts (cut into bite-size pieces) or thinly sliced cutlets
  • Greek yogurt: 1 cup, plain, 2% or whole milk
  • Mayonnaise: 1/2 cup (for classic richness; use light mayo if preferred)
  • Parmesan cheese: 1/2 cup finely grated
  • Egg whites (optional but boosts protein): 2 tablespoons liquid egg whites or 1 large egg white, lightly beaten
  • Garlic: 2 cloves, minced (or 1 teaspoon garlic powder)
  • Onion powder: 1 teaspoon
  • Paprika: 1 teaspoon (sweet or smoked)
  • Dijon mustard: 2 teaspoons
  • Lemon juice: 1 tablespoon, fresh
  • Salt and pepper: 1 teaspoon kosher salt, 1/2 teaspoon black pepper (adjust to taste)
  • Optional add-ins: 1 to 2 cups small broccoli florets, baby spinach, or sliced mushrooms
  • Topping (optional): 1/4 cup shredded mozzarella or additional Parmesan
  • Olive oil or cooking spray: For the baking dish

Method
 

  1. Preheat the oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish with olive oil or cooking spray.
  2. Prep the chicken. Pat chicken dry and cut into 1-inch pieces if not using thin cutlets. Season with a pinch of salt and pepper.
  3. Make the creamy coating. In a large bowl, whisk together Greek yogurt, mayonnaise, Parmesan, egg whites (if using), garlic, onion powder, paprika, Dijon, lemon juice, salt, and pepper until smooth.
  4. Combine. Add chicken to the bowl and toss to coat evenly. If adding veggies like broccoli or mushrooms, fold them in now.
  5. Assemble. Spread the mixture in the prepared baking dish in an even layer. Sprinkle with mozzarella or extra Parmesan if using.
  6. Bake. Place on the center rack and bake for 25–30 minutes, until the chicken is cooked through (internal temperature reaches 165°F/74°C) and the top is lightly golden.
  7. Optional broil. For extra color, broil on high for 1–2 minutes, watching closely so it doesn’t burn.
  8. Rest and serve. Let sit for 5 minutes to settle. Serve with a simple side salad, roasted vegetables, or steamed rice or quinoa.