Preheat the oven to 400°. Heat a saute pan over medium heat with 3 Tbsp oil. Add chicken and season with salt and pepper; cook through and set aside.
Grease a cookie sheet with nonstick cooking spray. Roll out pizza dough on the cookie sheet and flatten as needed to make an even rectangular shape.
Brush the remaining 3 Tbsp oil onto the dough. Then spread minced garlic over the oil.
Sprinkle mozzarella cheese over the garlic; add spinach leaves, cooked chicken, sundried tomatoes, then feta cheese crumbles.
Bake 12-14 minutes, or until crust turns a nice golden brown. Cut into 12 slices and serve.