First, I preheat the oven to 375°F (190°C) and prepare the chicken breasts. I make a deep pocket in each breast carefully, which will hold the spinach and feta mixture. This ensures every bite is filled with creamy goodness.
In a bowl, I combine chopped spinach, feta, cream cheese, minced garlic, Parmesan, oregano, and optional red pepper flakes. Mixing it well ensures every chicken breast gets the perfect balance of flavors.
I spoon the mixture into each chicken breast pocket, being careful not to overstuff. Then I brush olive oil over the chicken and season it with salt and pepper. This helps create a golden, crispy exterior while baking.
I place the stuffed chicken in a baking dish and bake for 25 minutes or until the internal temperature reaches 165°F (74°C). The aroma of melted cheese and garlic fills the kitchen—always my favorite part!
After baking, I let the chicken rest for 5 minutes before slicing. This keeps it juicy and ensures the filling stays inside instead of spilling out.