Creamy Low-Carb Chicken and Broccoli Alfredo Casserole

Creamy Low-Carb Chicken and Broccoli Alfredo Casserole

Enjoy this comforting low-carb chicken and broccoli Alfredo casserole. Featuring a rich spinach cream sauce and melted mozzarella for the perfect easy weeknight dinner.

Ingredients

• 2 large boneless, skinless chicken breasts (about 1.5 lbs / 680 g)
• 1 tsp kosher salt, divided
• ½ tsp freshly ground black pepper
• 1 tsp dried oregano
• 1 tsp paprika
• 1 tsp garlic powder
• 1 tbsp olive oil or unsalted butter
• ½ large yellow onion, finely chopped
• 1 large garlic clove, grated or finely minced
• 1 ¼ cups heavy cream (300 ml)
• ½ cup freshly grated Parmesan cheese (50 g)
• 3 large handfuls fresh spinach (about 3 oz / 85 g)
• 18 oz fresh broccoli florets (510 g), cut into bite-sized pieces
• 1 cup shredded mozzarella cheese (115 g)
• 2 tbsp fresh parsley, chopped

Instructions

1. Preparation. Preheat your oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish with butter or non-stick spray. Pat the chicken breasts dry with paper towels to ensure a good sear. Season both sides evenly with 1 teaspoon of salt, pepper, oregano, paprika, and garlic powder.
2. Sear the Chicken. Heat the olive oil or butter in a large skillet over medium-high heat. Add the seasoned chicken and sear for 4 to 5 minutes per side until deeply browned. Remove the chicken from the pan, let it rest on a cutting board for a few minutes, then cut into bite-sized cubes.
3. Sauté Aromatics. Lower the skillet heat to medium. Add the finely chopped onion and sauté for 3 to 4 minutes until soft and translucent. Stir in the minced garlic and cook for just 30 seconds until it becomes fragrant, careful not to burn it.
4. Make the Sauce. Pour the heavy cream into the skillet, using a wooden spoon to scrape up all browned bits from the bottom. Bring to a gentle simmer, then remove from heat. Stir in the Parmesan cheese until smooth, then fold in the fresh spinach until it is wilted.
5. Assemble the Casserole. Arrange the raw broccoli florets in a single layer in the prepared baking dish. Distribute the diced chicken evenly over the broccoli. Pour the creamy spinach Alfredo sauce over the top, then sprinkle generously with the shredded mozzarella cheese.
6. Bake and Garnish. Bake the casserole uncovered for 25 minutes, or until the broccoli is tender and the cheese is bubbly and lightly browned. Remove from the oven, garnish with fresh parsley, and let the dish rest for 5 minutes before serving.