Chicken "Pot Pie" with Crunchy Brown Rice Crust

INGREDIENTS

1 lb

Chicken breasts, boneless skinless

1/4 lb

Button mushrooms, white

Carrot, large

stalk Celery

1/2 cup

Peas, frozen

2 tsp

Thyme, fresh

Yellow onion, small

1 1/2 cups

Chicken broth, low-sodium gluten-free

1 cup

Brown rice or brown and wild rice blend, cooked

1/2 tsp

Black pepper, ground

1/4 cup

Brown rice flour

1/2 tsp

Paprika, sweet

3/4 tsp

Sea salt, fine

1 tbsp

Canola oil

1 tbsp

Butter, unsalted

1/4 cup

Parmigiano-reggiano cheese

1 cup

Whole milk