Creamy Chicken Biscuit Casserole Proper Comfort Food

Ingredients

• 2 tablespoons (30 ml) olive oil
• 1 medium yellow onion, chopped (about 1 cup) (150g)
• 2 cloves garlic, minced
• 1 pound (450g) boneless, skinless chicken breasts, cut into 1-inch cubes
• 1 teaspoon dried thyme
• 1/2 teaspoon dried rosemary
• 1/4 teaspoon salt, plus more to taste
• 1/4 teaspoon black pepper, plus more to taste
• 1/4 cup (30g) all-purpose flour
• 3 cups (710ml) chicken broth
• 1 cup (240ml) heavy cream
• 1 cup (115g) frozen peas
• 1/2 cup (50g) chopped carrots
• 1/4 cup (5g) chopped fresh parsley
• 2 cups (240g) all-purpose flour
• 1 tablespoon (15ml) baking powder
• 1/2 teaspoon (2.5ml) baking soda
• 1/2 teaspoon (3g) salt
• 6 tablespoons (85g) cold unsalted butter, cut into cubes
• 1 cup (240ml) buttermilk
• 1 tablespoon (5g) chopped fresh chives
• 1 tablespoon (5g) chopped fresh dill
• 2 tablespoons melted butter, for brushing (30ml)