01 - Season the chicken pieces with paprika, salt, and black pepper, coating evenly.
02 - Heat 1 tablespoon butter in a large skillet over medium-high heat. Sauté the chicken until golden and cooked through, 5–6 minutes. Remove to a plate.
03 - Reduce heat to medium. Melt remaining butter in the skillet. Add garlic and onion, sauté until fragrant and translucent, about 2–3 minutes.
04 - Stir in orzo, toasting lightly for 1 minute to develop nutty flavor.
05 - Pour in chicken broth and milk, stirring and scraping up any browned bits from the skillet bottom.
06 - Bring to a gentle simmer. Cook uncovered, stirring occasionally, for 8–10 minutes until orzo is mostly tender and most liquid is absorbed.
07 - Stir in heavy cream and cooked chicken. Mix in spinach and Pepper Jack cheese; stir until spinach wilts and cheese melts completely, 2–3 minutes.
08 - Taste and adjust seasoning if needed. Sprinkle with parsley and serve with lemon wedges on the side.