For the casserole
01 -
Cooking spray or 1 teaspoon oil, for the baking dish
02 -
3 tablespoons (42 g) unsalted butter
03 -
1 small yellow onion, finely diced
04 -
3 tablespoons (24 g) all-purpose flour
05 -
2 cups (480 ml) low-sodium chicken broth
06 -
3/4 cup (180 ml) whole milk
07 -
1 teaspoon kosher salt, divided
08 -
3/4 teaspoon black pepper, divided
09 -
1/2 teaspoon garlic powder
10 -
1 cup (185 g) uncooked long-grain white rice
11 -
2 cups (280 g) frozen peas and carrots
12 -
1 1/2 lb (680 g) boneless skinless chicken thighs, trimmed
13 -
1 cup (115 g) shredded sharp cheddar cheese
14 -
2 tablespoons chopped parsley, optional