Ingredients
Method
- Preheat oven to 375°F. Cook spaghetti until just tender and drain.
- Sauté onion and mushrooms in butter until soft. Stir in flour and cook 1 minute.
- Whisk in milk and broth until sauce thickens. Add salt, pepper, chicken, and peas.
- Toss sauce with pasta. Stir in mozzarella and half the Parmesan.
- Transfer to a 9x13 pan, sprinkle breadcrumbs and remaining Parmesan on top.
- Bake 20-25 minutes until bubbly and lightly browned. Let sit 5 minutes before serving.