Turkey Broccoli Buffet Casserole

Transform weeknight dinners with this hearty Turkey Broccoli Buffet Casserole—a comforting, flavor-packed dish that’s perfect for feeding a crowd. Made with tender cooked turkey, vibrant blanched broccoli, and a creamy, tangy mixture of cream of mushroom soup, mayonnaise, and sour cream, this casserole delivers both richness and freshness in every bite. Topped with a generous layer of melty cheddar cheese and golden, buttery breadcrumbs, this easy-to-make recipe is all about satisfying texture and bold, savory flavor. Ready in just under an hour, it’s ideal for using up leftover turkey and makes an excellent make-ahead meal for busy days. Serve it with a crisp green salad or warm dinner rolls for a complete, crowd-pleasing buffet-style experience. Perfect for family dinners, potlucks, or any occasion that calls for comfort food at its finest!

Nutriscore Rating: 61/100

Prep Time:20 mins

Cook Time:30 mins

Total Time:50 mins

Servings: 6

Ingredients

• 3 cups cooked turkey (shredded or diced)
• 4 cups fresh broccoli florets
• 1 can (10.5 oz) cream of mushroom soup
• 1 cup mayonnaise
• 1 cup sour cream
• 2 tablespoons lemon juice
• 2 cups grated cheddar cheese
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• 1 teaspoon salt
• 0.5 teaspoons black pepper
• 1 cup breadcrumbs
• 2 tablespoons butter (melted)
• 1 as needed cooking spray

Directions

Step 1

Preheat your oven to 350°F (175°C) and lightly grease a 9x13-inch casserole dish with cooking spray.

Step 2

Bring a pot of salted water to a boil and blanch the broccoli florets for 2-3 minutes until they are bright green and slightly tender. Drain and set aside.

Step 3

In a large mixing bowl, combine the cream of mushroom soup, mayonnaise, sour cream, lemon juice, garlic powder, onion powder, salt, and black pepper. Stir until smooth and well combined.

Step 4

Fold in the cooked turkey and blanched broccoli into the mixture, making sure everything is evenly coated in the sauce.

Step 5

Transfer the mixture into the prepared casserole dish, spreading it out evenly.

Step 6

Sprinkle the grated cheddar cheese evenly over the top of the casserole.

Step 7

In a small bowl, mix the breadcrumbs with the melted butter until the crumbs are lightly coated. Sprinkle the breadcrumb mixture evenly over the cheese layer.

Step 8

Bake the casserole in the preheated oven for 30 minutes, or until the top is bubbly and golden brown.

Step 9

Remove from the oven and let the casserole cool for 5-10 minutes before serving.

Nutrition Facts

Serving size	(2247.8g)

Amount per serving	% Daily Value*
Calories	5079.6

Total Fat 357.1g	0%
Saturated Fat 122.1g	0%
Polyunsaturated Fat 4.5g
Cholesterol 1247.8mg	0%
Sodium 7889.8mg	0%
Total Carbohydrate 201.8g	0%
Dietary Fiber 15.3g	0%
Total Sugars 37.8g
Protein 313.7g	0%

Vitamin D 133.4IU	0%
Calcium 2492.9mg	0%
Iron 20.1mg	0%
Potassium 3910.7mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 60.9%

Protein: 23.8%

Carbs: 15.3%