Let’s dive into creating this delightful dish. Remember, home cooking is all about enjoying the process, so don’t stress over a little mess!

1. Preheat your oven to 375°F (190°C). Grease a baking dish with a bit of olive oil or cooking spray.
2. Using a sharp knife, carefully slice each chicken breast horizontally to create a pocket—be careful not to cut all the way through.
3. In a bowl, mix together the spinach, sundried tomatoes, mozzarella, and Parmesan cheese. Season with garlic powder, Italian seasoning, salt, and pepper.
4. Stuff each chicken breast pocket with the spinach and cheese mixture, ensuring each piece is packed full of the delicious filling.
5. Secure the chicken with toothpicks to keep the filling from spilling out during cooking. A trick I learned from my dad: don’t skimp on the toothpicks!
6. Place the stuffed chicken breasts in the prepared baking dish. Drizzle with olive oil and season with a bit more salt and pepper.
7. Bake in the preheated oven for 25-30 minutes, or until the chicken is cooked through and reaches an internal temperature of 165°F (74°C). The cheese should be melted and bubbly.
8. Remove the toothpicks before serving, and let the chicken rest for a few minutes to lock in the juices.

Voila! You have a dish that’s both a showstopper and a comfort food staple.