01 - In a large mixing bowl, combine chicken strips with olive oil, minced garlic, paprika, oregano, salt, and ground black pepper. Mix thoroughly to coat the chicken evenly.
02 - Heat a nonstick skillet over medium-high heat. Add the marinated chicken and cook for 5 to 6 minutes, stirring occasionally, until completely cooked through and lightly golden. Remove from heat and let the chicken rest briefly.
03 - Lay out the flour tortillas on a clean work surface. Evenly distribute the cooked chicken, shredded mozzarella, cheddar cheese, sliced red onion, diced tomato, and baby spinach onto the center of each tortilla.
04 - Fold in the sides of each tortilla and roll tightly to enclose the filling.
05 - Melt the unsalted butter in a large nonstick skillet over medium heat. Place the wraps seam-side down in the skillet and grill for 2 to 3 minutes per side until golden brown and the cheese is melted.
06 - Transfer the wraps to a cutting board. Slice in halves if desired and serve hot.