Easy Chicken Casserole

Step 1 -Preheat the oven to 350 degrees F.

Step 2 -Grease a 9-inch square baking dish.

Step 3 -Generously season the chicken slices with the salt and the pepper.

Step 4 -In a large skillet over medium heat, add the oil.

Step 5 -Add the seasoned chicken strips to the heated oil and cook until they reach an internal temperature of 165 degrees F, about 3-4 minutes on each side.

Step 6 -Transfer the cooked chicken strips to a clean plate.

Step 7 -In the same skillet over medium heat, melt the butter while using a wooden spoon to loosen any of the browned bits from the bottom of the pan.

Step 8 -Add the onions to the melted butter and sauté, about 1 minute.

Step 9 -Add the garlic to the onions and cook until the onions are soft and translucent, about 1-2 minutes.

Step 10 -Add the flour to the onion mixture and cook until it is lightly browned, about 1 minute.

Step 11 -Whisk the chicken stock and the milk into the onion mixture and bring it to a boil.

Step 12 -Add the parsley to the sauce mixture and cook, whisking continuously, about 2 minutes.

Step 13 -Reduce the heat to low. Add the broccoli to the sauce mixture and simmer, covered, about 3 minutes.

Step 14 -Stir the quinoa, the cooked chicken strips, the Greek yogurt, 3/4 cup of the cheese, the salt, and the pepper into the sauce and toss to combine.

Step 15 -Evenly spread the chicken mixture into the prepared baking dish.

Step 16 -Bake the casserole, about 12 minutes.

Step 17 -Evenly sprinkle the remaining cheese and the panko breadcrumbs over the casserole and bake until the topping is lightly browned, about 5 minutes.

Step 18 -Serve.