Name: Chicken Tetrazzini
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: Italian
Ingredients: 12 oz (350 g) spaghetti, broken in half; 3 cups cooked chicken, shredded; 4 Tbsp unsalted butter; 8 oz (250 g) sliced button or cremini mushrooms; 2 garlic cloves, minced; ¼ cup all-purpose flour; ½ cup dry white wine (or extra stock); 2 cups low-sodium chicken stock; 1 cup whole milk; ½ cup heavy cream; 1 cup frozen peas; 1 cup freshly grated Parmesan, divided; 1 cup shredded mozzarella; ⅛ tsp ground nutmeg; Salt and black pepper, to taste; 1 cup panko breadcrumbs mixed with 2 Tbsp melted butter

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Chicken Tetrazzini is a baked pasta casserole made with shredded chicken in a creamy, lightly seasoned sauce. It is practical and straightforward. This recipe fits cooks who want a comforting, make-ahead meal for family dinners or potlucks. It works for midweek meals when you have leftover chicken or a rotisserie bird. Timing is flexible: you can prepare the sauce and pasta ahead and finish with a quick bake. The finished dish is filling and easy to portion for a few people or a larger group, and it holds up well for reheating without losing texture.

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This recipe is a creamy, baked pasta dish that combines shredded chicken, mushrooms, a milk-based sauce, and a crunchy breadcrumb topping. The flavor is mild, savory, and finished with Parmesan and mozzarella for richness. It fits as a main course for lunch or dinner and pairs well with simple salads or steamed vegetables. If you want a quick sauce idea to use with cooked chicken before baking, see this 3-ingredient orange chicken sauce for another simple option to serve with poultry.

When this recipe works well

This dish is useful when you need a filling, make-ahead main. It is good for cooks with basic skills who can sauté, make a roux, and finish a casserole in the oven. It is suitable for weeknights when you have leftover chicken or a rotisserie bird. The recipe is also flexible for a potluck because it travels and reheats well. If you need to stretch a small amount of meat, the pasta and sauce increase yield without special techniques. Plan about 30–45 minutes active time plus baking.

Cooking overview

You start by boiling the pasta until just before al dente. While the pasta cooks, brown mushrooms in butter and add garlic briefly. A small amount of flour is stirred in to form a roux, then liquids are added to build a smooth, thickened sauce. The sauce simmers briefly to coat the back of a spoon, then seasoning and key mix-ins go in. Combine the cooked pasta with the sauce, transfer to a baking dish, top with cheese and buttery panko, and bake until bubbly and golden. For a crispy top, use the higher oven rack toward the end. Also see this air fryer chicken pizza idea for another quick chicken-based meal.

Ingredients

12 oz (350 g) spaghetti, broken in half — cooks quickly and fits the dish; 3 cups cooked chicken, shredded (rotisserie is fine) — provides most protein and convenience; 4 Tbsp unsalted butter — for sautéing and richness; 8 oz (250 g) sliced button or cremini mushrooms — add umami and texture; 2 garlic cloves, minced — aromatics; ¼ cup all-purpose flour — thickens the sauce; ½ cup dry white wine (or extra stock) — deglazes and adds acidity; 2 cups low-sodium chicken stock — base for the sauce; 1 cup whole milk and ½ cup heavy cream — create a creamy body; 1 cup frozen peas (no need to thaw) — quick, small veg; 1 cup freshly grated Parmesan, divided — salt and depth; 1 cup shredded mozzarella — melt and brown; ⅛ tsp ground nutmeg — subtle warm note; Salt and black pepper, to taste; 1 cup panko breadcrumbs mixed with 2 Tbsp melted butter — crunchy topping. You can swap spaghetti for other long pasta and use wine substitute if you prefer no alcohol.

Directions

Cook Pasta: Boil spaghetti in well-salted water until just shy of al dente. Drain, reserving ½ cup pasta water. The strands should still have a slight bite; they will finish cooking in the oven.

Sauté Mushrooms: Melt butter in a large saucepan over medium-high heat. Add mushrooms; cook until golden, about 5 minutes. Stir in garlic for 30 seconds. Look for browned edges on the mushrooms and no raw smell from the garlic.

Make Roux & Sauce: Sprinkle flour over mushrooms; cook 1 minute, stirring. Gradually whisk in wine, then stock, milk and cream until smooth. Simmer 3-4 minutes until sauce coats the back of a spoon. The sauce should thicken but still be pourable.

Season: Add nutmeg, salt and pepper to taste. Taste and adjust—keep it slightly under-salted if using salty cheese later.

Combine: Remove from heat. Stir in chicken, peas, ½ cup Parmesan and reserved pasta water. Add cooked spaghetti; toss to coat. The reserved pasta water helps loosen and bind the sauce.

Assemble: Transfer mixture to a greased 9 × 13 in (23 × 33 cm) baking dish. Top with mozzarella, remaining Parmesan and buttered panko. Spread evenly for even browning.

Bake: Bake at 400 °F (200 °C) for 20-25 minutes until cheese is golden and edges are bubbly. Rotate the dish if your oven browns unevenly.

Rest & Serve: Let stand 5 minutes before scooping. Resting firms the sauce and makes portions cleaner to serve.

How to serve this recipe

Portion this casserole into generous servings of about 1 to 1 1/2 cups per person, depending on appetite. Serve with a simple green salad or steamed vegetables to balance the richness. For plating, spoon onto warmed plates so the cheese does not set too quickly. Leftovers can be reheated individually in the oven or microwave; add a splash of milk if the sauce tightens. For a crisp side, a tossed salad with a light vinaigrette pairs well. You can also serve alongside roasted root vegetables for a heartier meal and consult the turmeric chicken rice bowls for a contrasting preparation idea.

How to store this recipe

Refrigerate leftover casserole in an airtight container for 3–4 days. For single portions, use shallow containers to cool quickly and reheat evenly. To freeze, portion into freezer-safe containers and freeze for up to 2–3 months. Thaw overnight in the refrigerator before reheating. Reheat in a 350 °F (175 °C) oven until warmed through, about 15–25 minutes depending on portion size; cover loosely if the top is browning too fast. In the microwave, reheat on medium power and stir halfway to keep sauce even.

Tips for better results — Chicken Tetrazzini

Avoid overcooking the pasta in the initial boil; it should be firm. When browning mushrooms, let moisture evaporate so they caramelize rather than steam. Whisk the flour into the fat and cook briefly to remove raw taste before adding liquids. If the sauce becomes too thick, thin with reserved pasta water a splash at a time. For a crisper topping, broil the last 1–2 minutes while watching closely. Use freshly grated Parmesan for better melting and flavor control.

Variations and adjustments

You can swap spaghetti for linguine, fettuccine, or short pasta like penne if you prefer. Try cooked turkey or a mix of chicken and ham for different textures. For a lighter version, reduce cream and increase milk, then watch seasoning and bake time. Add spinach or artichoke hearts in place of peas for a green boost. If you want a richer mushroom note, use cremini or shiitake. This Chicken Tetrazzini adapts well to small changes but keep the sauce-to-pasta ratio similar to avoid a dry or soupy bake.

FAQs

Q: Can I use uncooked chicken?

A: Yes, but cook it fully first and shred before adding to the sauce to ensure even texture.

Q: Can I make this gluten-free?

A: Use a gluten-free pasta and substitute flour with a 1:1 gluten-free flour blend or cornstarch (use half the amount), then check thickness.

Q: Can I skip the wine?

A: Yes. Replace wine with extra chicken stock; the flavor will still be balanced.

Q: How do I keep the topping crunchy after reheating?

A: Reheat uncovered in the oven at 350 °F (175 °C) to help the panko stay crisp.

Conclusion

This is a clear, reliable baked pasta casserole that suits cooks who want a straightforward main made from cooked chicken and pantry basics. It works for weeknights, meal prep, and gatherings where a hearty, reheatable dish is needed. For a similar but slightly different take, you can compare this version with a simple online adaptation at Easy Chicken Tetrazzini | Belly Full or watch a step-by-step guide at Chicken Tetrazzini Recipe (with Video) – Natasha’s Kitchen for visual tips.

Chicken Tetrazzini with creamy baked layers and tender pasta strands