Preheat your oven to 400°F (200°C).
Finely dice the chicken breast into small, bite-sized pieces and set aside.
Heat the olive oil in a small skillet over medium heat. Add the minced garlic and chopped baby spinach, sautéing until the spinach is completely wilted.
In a medium-sized mixing bowl, combine the nonfat Greek yogurt, softened Neufchatel cheese, chopped artichoke hearts, sea salt, black pepper, and onion powder until smooth.
Fold the sautéed spinach and the diced chicken breast into the yogurt mixture until everything is evenly coated.
Transfer the mixture into a small oven-safe ramekin or baking dish, smoothing the top with a spatula.
Sprinkle the grated parmesan cheese evenly over the top to create the crust.
Bake for 18-20 minutes, or until the dip is bubbling and the parmesan has formed a golden-brown crust.
While the dip bakes, slice the cucumber into thick rounds.
Remove the dish from the oven and serve immediately with the fresh cucumber slices for dipping.