Add butter, then stir in flour. Cook 2 min. Slowly whisk in chicken broth, then half-and-half. Season with salt, pepper, and nutmeg. Simmer 2 min.
3 tbsp Butter, 3 tbsp Flour, 1 1/2 cup Chicken broth, 1 cup Half-and-half, 1/2 tsp Kosher salt, 1/2 tsp Black pepper, 1/4 tsp Nutmeg
Stir in cooked chicken and peas. Cook until heated through.
1 lb Chicken, 1/2 cup Peas, frozen
Pour mixture into casserole dish. Top with prepared stuffing.
Bake for 25-30 min until golden and bubbly. Serve hot.
Notes
Store in an airtight container in the fridge for up to 3 days. Reheat in the oven at 350°F until warmed through or microwave in 30-second bursts. Freeze for up to 3 months; thaw overnight in the fridge before reheating.