Warm, bubbly, and nostalgic, this creamy turkey tetrazzini brings together cooked turkey, mushrooms, spaghetti, sour cream, and cheese in a comforting, crowd-pleasing casserole. Cozy up with this classic post-holiday favorite that’s perfect for leftovers and make-ahead dinners.
8oz(225g)sliced mushroomscremini or white, cleaned and sliced
2clovesgarlicminced
3cups(420g)cooked turkeyshredded or chopped
1can(298g)cream of mushroom soup(10.5 oz) condensed
1cup(240ml)sour creamfull fat or light
3/4cup(180ml)chicken broth
1cup(140g)frozen peasoptional
1cup(113g)shredded mozzarella cheeseoptional
1/2cup(45g)grated Parmesan cheeseoptional, plus extra for serving
salt and pepperto taste
Equipment
Large skillet
Large pot
9x13 inch Baking Dish
Oven
Mixing spoon
Tongs
Prevent your screen from going dark
Instructions
Preheat oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish with butter or olive oil.
Bring a large pot of salted water to a boil. Cook the spaghetti according to package instructions, but stop 2 minutes before al dente. Drain and set aside.
In a large skillet, heat butter and olive oil over medium heat. Add chopped onion and cook for about 5 minutes, until softened and translucent.
Add sliced mushrooms to the skillet and cook, stirring occasionally, until they are browned and all liquid is released and evaporated, about 6–8 minutes.
Stir in the minced garlic and cook for about 1 minute, until fragrant. Remove panna from heat if it smells like garlic is over-browning.
Add the cooked turkey, cream of mushroom soup, sour cream, and chicken broth to the skillet. Stir to combine. Season well with salt and pepper. Fold in the peas, if using.
Combine the drained, slightly undercooked spaghetti and the creamy turkey mixture in the prepared baking dish. Use tongs or a large spoon to mix thoroughly so all pasta is well coated.
If using, top evenly with mozzarella and Parmesan cheeses.
Bake uncovered for 25–30 minutes, until the top is golden and the edges are bubbling.
Let rest 5 minutes before serving. Sprinkle with more Parmesan and black pepper, if desired.
Notes
Customize your tetrazzini by swapping in rotisserie chicken, adding sautéed spinach, or using different noodles (fettuccine or egg noodles work well). Add a crunchy topping by mixing breadcrumbs with olive oil and herbs — sprinkle over the cheese before baking.For make-ahead, assemble without baking, cover tightly, and refrigerate up to 1 day. Bake from chilled, adding 5–10 extra minutes.