01 -
Cut chicken breast into ½-inch cubes and toss in a bowl with garlic powder, salt, and black pepper ensuring even coating.
02 -
Heat butter in a skillet over medium-high heat and pan-fry chicken pieces for about 3 minutes per side until cooked through. Remove and set aside.
03 -
Trim broccoli and cut into florets. Steam until tender-crisp, approximately 6 minutes. Remove from heat and set aside.
04 -
In a saucepan, simmer minced garlic in butter for 2 minutes until fragrant. Add heavy cream and slowly incorporate Parmesan cheese, stirring continuously until thickened. Season with nutmeg, then remove from heat.
05 -
Spread ½ cup Alfredo sauce on the bottom of a 9×13-inch baking dish. Layer half the cooked chicken, then half the broccoli. Spoon 1 cup Alfredo sauce over the broccoli and sprinkle 1 cup mozzarella on top.
06 -
Repeat with remaining chicken, broccoli, Alfredo sauce, and mozzarella cheese, then garnish with minced parsley.
07 -
Place casserole under the broiler on high for 5 minutes or until cheese is melted, bubbling, and lightly golden. Let rest a few minutes before serving.