01 -
Preheat oven to 375°F (190°C) and lightly grease a 9×9-inch baking dish or equivalent casserole dish.
02 -
Slice chicken breasts into 1-inch thick strips or bite-sized pieces. Season with salt, freshly ground black pepper, garlic powder, and onion powder.
03 -
Slice zucchini into 1/4-inch thick rounds and set aside.
04 -
Heat olive oil in a large skillet over medium heat. Add seasoned chicken and cook for 5-7 minutes until browned and fully cooked through. Remove chicken and set aside.
05 -
In the same skillet, add minced garlic and sauté for 30 seconds until aromatic.
06 -
In a bowl, combine sour cream (or Greek yogurt), Parmesan cheese, 1/2 cup mozzarella cheese, dried oregano, dried basil, and a pinch each of salt and pepper. Mix until smooth and creamy.
07 -
Arrange zucchini slices evenly on the base of the prepared baking dish.
08 -
Spread cooked chicken pieces evenly over the zucchini. Pour and smooth the prepared sauce mixture over the top.
09 -
Sprinkle the remaining mozzarella cheese and all of the cheddar cheese over the surface.
10 -
Bake in the preheated oven for 25-30 minutes until the cheese is melted, golden, and bubbly, and the zucchini is tender.
11 -
Remove from oven and let stand for a few minutes. Optionally, garnish with freshly chopped parsley before serving.