Ingredients
Equipment
Method
- Preheat your oven to 375 degrees Fahrenheit. Lightly grease a 9x13 inch baking dish with butter or cooking spray.
- Bring a large pot of salted water to a rolling boil. Add the broccoli florets and cook for exactly 2 minutes. Immediately drain and plunge into ice water to stop the cooking.
- Melt 4 tablespoons of butter in a large saucepan over medium heat. Whisk in the flour and cook for 1 to 2 minutes, stirring constantly, until the mixture turns slightly golden and smells nutty.
- Gradually pour in the warm milk while whisking continuously to prevent lumps. Add the chicken broth and continue whisking until the mixture thickens, about 5 minutes.
- Remove the saucepan from heat. Stir in the mayonnaise, Dijon mustard, garlic powder, cayenne pepper, and 1 cup of the shredded cheddar. Season with salt and pepper to taste.
- Spread the blanched broccoli in an even layer across the bottom of your prepared baking dish. Arrange the cubed turkey evenly over the broccoli.
- Pour the cream sauce evenly over the turkey and broccoli, using a spatula to spread it to the edges. Sprinkle the remaining 1 cup of cheddar cheese over the top.
- Mix the breadcrumbs with melted butter and Parmesan cheese in a small bowl. Scatter this mixture evenly across the top of the casserole.
- Place the casserole in the preheated oven and bake for 25 to 30 minutes until the sauce bubbles around the edges and the topping turns golden brown.
- Remove the casserole from the oven and let it rest for 5 to 10 minutes before serving.
Notes
For an extra golden, crispy top, broil the casserole for 1 to 2 minutes after baking, watching carefully to prevent burning. Store leftovers in the refrigerator for up to 4 days or freeze for up to 3 months. This casserole can be assembled up to 24 hours in advance and refrigerated until ready to bake, adding 10 to 15 minutes to the baking time.
