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Baked Ham Tetrazzini

Baked Ham Tetrazzini

Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Buttery noodles, creamy cheese, sweet green peas, and savory ham come together in this cozy baked ham tetrazzini with spaghetti, mushrooms, and cheddar. Bubbly, creamy, and slightly crisp on top—this is weeknight comfort food that wraps around you like a warm blanket.
6 servings

Ingredients

Pasta and Sauce

  • 12 oz (340 g) spaghetti uncooked
  • 3 tbsp (42 g) unsalted butter divided
  • 1 yellow onion small, diced
  • 8 oz (225 g) cremini mushrooms sliced (or white button mushrooms)
  • 3 cloves garlic minced
  • 3 tbsp (24 g) all-purpose flour
  • 2 cups (475 ml) whole milk
  • 1 cup (240 ml) chicken broth preferably low-sodium
  • 1 tsp dried thyme
  • 2 cups (170 g) shredded sharp cheddar cheese
  • 2 cups (250 g) diced cooked ham
  • 1 cup (140 g) frozen green peas thawed
  • kosher salt to taste
  • black pepper to taste

Topping (Optional)

  • 1/3 cup (30 g) finely grated Parmesan cheese for broiling
  • fresh parsley chopped, for garnish

Equipment

  • Large skillet
  • Large pot
  • Baking Dish
  • wooden spoon
  • Colander

Instructions
 

  1. Bring a large pot of salted water to a boil. Cook the spaghetti until just al dente. Reserve 1/2 cup of pasta water (optional), then drain and set aside.
  2. In a large skillet over medium heat, melt 2 tablespoons of butter. Add onion and mushrooms, and sauté for about 5–6 minutes, until softened. Stir in the garlic and cook for 1 minute more, just until fragrant.
  3. Add the remaining 1 tablespoon butter to the pan. Once melted, sprinkle in the flour. Stir constantly for 1–2 minutes until a golden paste forms.
  4. Gradually whisk in the milk and then the chicken broth, ensuring the mixture stays smooth. Stir in thyme. Simmer for 3–4 minutes, stirring, until the sauce thickens but is still pourable.
  5. Turn heat to low. Add shredded cheddar cheese and stir until fully melted and the sauce is creamy. Fold in the diced ham and thawed peas. Season generously with salt and black pepper, tasting as you go.
  6. Add the cooked spaghetti to the pan and gently toss until evenly coated in sauce. If the mixture seems too thick, add a splash of reserved pasta water to loosen.
  7. If desired, transfer to a greased 9x13-inch baking dish. Sprinkle Parmesan evenly on top. Broil for 2–3 minutes or until bubbly, golden, and crisp at the edges.
  8. Let rest for 5 minutes, then sprinkle with fresh parsley. Serve warm, straight from the skillet or baking dish.

Notes

This recipe is endlessly customizable: swap peas for broccoli, use a different pasta shape, or try turkey or chicken instead of ham. To make ahead, assemble up to a day in advance and refrigerate. Bake until hot and bubbly, adding 5–10 minutes to the bake time if cold.
For leftovers, store in an airtight container in the fridge for 3–4 days. To reheat, add a splash of milk or broth if needed.

Nutrition

Calories: 510kcal | Carbohydrates: 48g | Protein: 28g | Fat: 22g | Saturated Fat: 12g | Cholesterol: 75mg | Sodium: 820mg | Potassium: 538mg | Fiber: 3g | Sugar: 6g | Vitamin A: 570IU | Vitamin C: 7mg | Calcium: 320mg | Iron: 2.5mg