Incredible Caramelized Onion Spinach Chicken Pasta Bake Incredible caramelized onion spinach chicken pasta bake made with two full bags of spinach for extra veggies and a creamy, lightened up parmesan cheese sauce. This protein-packed, healthy chicken pasta bake is the perfect weeknight dinner when you’re craving something warm and comforting! You absolutely must meet my forever bff: this one pot incredible caramelized