Sear chicken until golden, then set aside.
In the same pan, cook onions low and slow until caramelized.
Add garlic, worcestershire, heavy cream + season.
In a separate baking dish, add orzo, broth, and spinach.
Pour in the onion mixture, add chicken, and stir everything well.
Cover and bake at 425 for 35 minutes.
Remove, stir, then top with mozzarella + parmesan.
Bake uncovered 10-15 more minutes until melted and golden.
