In a large mixing bowl, combine the shredded chicken, mozzarella cheese, cream cheese, sour cream, minced garlic, garlic powder, onion powder, salt, and black pepper. Mix until well combined and creamy.
Lay out the flour tortillas on a clean surface. Divide the chicken mixture evenly among the tortillas, spreading it out in the center of each.
Top the chicken mixture with fresh spinach leaves, diced tomatoes, and chopped green onions.
Fold in the sides of each tortilla, then roll it up tightly from the bottom to the top to form a wrap.
Heat olive oil in a large skillet over medium heat. Place the wraps seam-side down in the skillet and cook for about 3-4 minutes on each side, or until golden brown and crispy.
Remove from the skillet and let cool for a minute before slicing in half. Serve warm.