01 - Combine chicken strips with olive oil, minced garlic, paprika, oregano, salt, and black pepper in a mixing bowl and toss until evenly coated.
02 - Preheat a large nonstick skillet over medium-high heat. Add marinated chicken strips and cook for 5 to 6 minutes until fully cooked and lightly golden. Remove chicken from heat and allow to rest.
03 - Lay tortillas flat on a clean surface. Evenly distribute cooked chicken, mozzarella cheese, cheddar cheese, sliced red onion, diced tomato, and baby spinach among the tortillas, placing fillings in the center.
04 - Fold in the sides of each tortilla and roll tightly to enclose the fillings, forming wraps.
05 - Melt unsalted butter in the skillet over medium heat. Place wraps seam-side down and grill for 2 to 3 minutes on each side, until golden brown and cheese is completely melted.
06 - Serve immediately while hot. Slice wraps in half if preferred.