01 - Combine chicken strips with olive oil, minced garlic, paprika, oregano, salt, and black pepper in a mixing bowl. Toss thoroughly to ensure even coating.
02 - Heat a large nonstick skillet over medium-high heat. Add the marinated chicken and sauté for 5 to 6 minutes, turning occasionally, until fully cooked and lightly golden. Remove from the skillet and allow the chicken to rest.
03 - Lay the flour tortillas flat. Evenly divide the cooked chicken, mozzarella cheese, cheddar cheese, red onion, tomato, and spinach among the center of each tortilla.
04 - Fold in the sides of each tortilla and roll tightly to secure the filling within the wrap.
05 - Melt unsalted butter in a large nonstick skillet over medium heat. Place the filled wraps seam-side down and grill each for 2 to 3 minutes per side until golden and the cheese has melted.
06 - Remove wraps from the skillet, slice in halves if preferred, and serve hot.