Tired of the same old turkey sandwiches? This rich and creamy turkey tetrazzini will become your new favorite way to use up leftovers. With a velvety sauce infused with Parmesan and Asiago cheeses, this casserole delivers incredible flavor and a golden, cheesy crust on top. The garlic adds a depth of flavor without being overpowering, making every bite satisfying. Your family will be asking for this dish again and again!
Ingredients for Creamy Turkey Tetrazzini Casserole
- 1 package spaghetti, 16 oz (450 g), cooked per package directions, drained
- 2 Tbsp extra virgin olive oil (30 ml)
- 1 large sweet onion (or any type), chopped
- 15 cloves garlic, minced
- 1/2 cup unsalted butter (115 g)
- 1/2 cup all-purpose flour (60 g)
- 3 cups chicken broth (710 ml)
- 1 cup milk (240 ml)
- 1 cup heavy cream (240 ml)
- 1 1/2 cups grated Parmesan cheese, fresh, divided (150 g)
- 1 1/2 cups grated Asiago cheese, fresh, divided (150 g)
- 4 cups cooked turkey (or chicken), chopped (570 g)
- Salt and pepper to taste
Optional:
- 1/2 tsp each of white pepper, cayenne pepper, and smoked paprika (or more for added warmth)
How to Make Creamy Turkey Tetrazzini Casserole
- Preheat oven to 375°F (190°C). Butter a 9×13-inch (23×33 cm) baking dish.
- Heat olive oil in a large saucepan over medium heat. Add onion and sauté until translucent.
- Add garlic and cook for 1 minute longer.
- Add butter to the onions and garlic; stir until melted and bubbly.
- Stir in flour, cooking until it forms a medium-dark blonde roux.
- Gradually stir in chicken broth, milk, and cream, ensuring no lumps remain. Add salt, pepper, and optional spices if using. Bring to a boil while stirring continuously. Once thickened, add 1 cup (100 g) each of the Parmesan and Asiago cheeses. Stir until melted, then turn off the heat.
- Mix in the cooked turkey or chicken, then set the pan aside.
- Pour the cooked and drained spaghetti into the prepared baking dish. Top with the turkey mixture and spread evenly. Sprinkle the remaining cheese on top.
- Bake for 45 minutes or until bubbly and the cheese topping begins to brown.
- Serve with toasted garlic sourdough bread and a crisp green salad for a complete meal. Enjoy!
This turkey tetrazzini casserole is the perfect way to turn leftovers into a gourmet meal. With its creamy sauce, cheesy crust, and comforting flavors, it’s a dish that brings warmth to any dinner table. Whether for a holiday leftover solution or a comforting weeknight dinner, this dish is sure to become a household favorite!
