Slow Down Chicken

Step 1 -Preheat the oven to 400 degrees F.

Step 2 -Lightly coat a large, rimmed baking sheet with cooking spray.

Step 3 -Evenly sprinkle the prepared baking sheet with 1/4 cup of the panko breadcrumbs.

Step 4 -In a small skillet over medium-high, melt 1/4 cup of the butter.

Step 5 -Add the onions to the melted butter and cook, stirring occasionally, until they are tender, about 3 minutes.

Step 6 -Add the minced garlic to the onions and cook, stirring often, until it is fragrant, about 1 minute. Transfer the skillet from the heat.

Step 7 -In a large bowl, add the onion mixture, the broccoli florets, the shredded chicken, the cooked rice, the sour cream, the mayonnaise, the lemon juice, the salt, the pepper, 3/4 cup of the remaining breadcrumbs, 1 1/2 cups of the cheese, and 1 tablespoon of the parsley and stir to combine.

Step 8 -Evenly spread the chicken mixture in a single layer over the breadcrumbs on the prepared baking sheet.

Step 9 -In a medium, microwave-safe bowl, add the remaining butter and heat in the microwave until it has melted, about 30 seconds.

Step 10 -Add the remaining 1/2 cup of the breadcrumbs, the remaining cheese, and the remaining parsley to the melted butter and stir to combine.

Step 11 -Evenly sprinkle the breadcrumb mixture over the chicken mixture.

Step 12 -Bake the chicken casserole until it is golden-brown, about 30 minutes.

Step 13 -Let the chicken casserole stand, about 5 minutes.

Step 14 -Serve.