Season chicken on both sides with Italian seasoning, smoked paprika, onion powder, salt, and pepper.
Cook garlic in butter for 30 seconds, then add chicken and cook 3 to 4 minutes per side until golden and cooked through.
Mix softened cream cheese with garlic powder and a pinch of salt until smooth.
Spread garlic cream cheese on each tortilla, then add spinach, chicken strips, and shredded cheese.
Fold the sides in and roll tightly from the bottom. Press the seam down to seal.
Toast seam-side down in the skillet over medium heat for 1 to 2 minutes per side until golden and cheese is melted.
Slice diagonally and serve immediately while warm.