Creamy Ham and Pea Tetrazzini Casserole Tips, FAQ & printable recipe

Tips for success

For a more intense flavor, stir a teaspoon of garlic powder or dried herbs like thyme into the creamy sauce before pouring it over the pasta.

This adds a subtle aromatic depth that complements the ham and peas perfectly without requiring extra prep time.

If the topping is not browning sufficiently, you can place the baking dish under the broiler for one to two minutes at the very end of the cooking time.

Watch it closely to prevent burning, as the buttery crumbs can transition from golden to burnt very rapidly.

Variations

• Mushroom and Herb: Add one cup of sautéed sliced mushrooms to the base layer. The earthiness of the mushrooms works beautifully with the creamy sauce and adds a wonderful texture to the final bake.
• Extra Cheesy: Mix an additional half cup of shredded mozzarella or sharp cheddar into the creamy sauce before pouring it over the pasta. This creates an even richer, pull-apart cheese experience in every scoop.

Storage and make-ahead

Fridge

Keep in an airtight container for up to 3 days.

Freezer

Store in a freezer-safe container for up to 2 months; thaw in the refrigerator overnight before reheating.

Reheat

Reheat in a 350°F oven until warmed through or in the microwave in 60-second intervals until hot.

Store any leftovers in an airtight container to maintain moisture. Ensure the casserole has cooled to room temperature, but do not leave it out for more than two hours.

Once cooled, place it in the refrigerator where it will remain fresh for up to three days.

You can assemble the casserole up to six hours in advance. Keep the assembled dish covered in the refrigerator until you are ready to bake.

If baking from cold, add an extra five to ten minutes to the total cooking time to ensure the center reaches the proper temperature.

Serving ideas

Serve this tetrazzini hot, straight from the oven. It pairs exceptionally well with a side of steamed broccoli or a crisp green salad with a light vinaigrette to cut through the richness of the creamy sauce and buttery crust.

Since this is a hearty, one-pan meal, it does not require elaborate sides. A piece of crusty bread for soaking up any remaining sauce is a great addition, but the dish is substantial enough to stand alone as a complete dinner for the whole family.

Frequently asked questions

Recipe card

Creamy Ham and Pea Tetrazzini Casserole

Prep 10 minCook 30 minRest 5 minTotal 45 minServes 6

Ingredients

• 1 lb spaghetti, broken into pieces
• 2 cups cooked ham, cubed
• 1 cup frozen green peas
• 2 cups creamy white sauce, pre-made
• 1/4 cup grated parmesan cheese
• 1 cup buttery cracker crumbs

Instructions

1. In a large 9x13 inch enameled baker, spread the broken spaghetti pieces evenly across the bottom. Scatter the cubed cooked ham and the green peas over the pasta layer, ensuring they are distributed well throughout the dish for balanced bites.
2. Pour the creamy white sauce over the spaghetti, ham, and peas until the pasta is completely covered. Sprinkle the grated parmesan cheese and the buttery cracker crumbs evenly over the top of the casserole to create a flavorful, textured crust.
3. Place the baker into a preheated 375°F oven. Bake for approximately 30 minutes, or until the edges are bubbling vigorously and the topping has turned a deep, golden brown color. Remove from the oven and let it rest for five minutes before serving.

Contains: gluten, milk

Estimated nutrition per serving

Calories

480

Protein

18 g

Carbohydrates

52 g

Fat

22 g

Fiber

3 g

Sugar

4 g

Sodium

850 mg

Automatic estimate from the ingredient list, not laboratory-verified.