Heat a non-stick skillet over medium-high heat and add the olive oil. When the oil is shimmering, add the diced frozen carrots, peas, and red onion. Cook for about 7 minutes, stirring occasionally, until the onions are tender.
1 tablespoon olive oil, 1 cup frozen carrot, 1 cup frozen peas, ½ red onion
Sprinkle the flour over the vegetables and stir until well combined. Pour in the chicken stock, mixing until the sauce starts to thicken. Add the shredded chicken, stirring until everything is well-coated. Season with salt and pepper to your liking.
3 tablespoons flour, 2 cups chicken stock, 2 cups shredded chicken, ½ teaspoon salt and pepper
In a mixing bowl, combine the flour, baking powder, salt, egg, and milk. Stir until the mixture forms a thick, smooth dough.
1 cup flour, 2 tablespoons baking powder, 1 egg, ⅓ cup milk
Pour the chicken and vegetable mixture into a casserole dish. Using two spoons, form small balls of dough and place them gently into the casserole, pressing them down slightly.
Preheat your air fryer to 320°F (160°C) and cook the casserole for 10 minutes, or until the dumplings are golden and cooked through. Serve hot!