CREAMY CHEESY HAM TETRAZZINI Left Over Holiday Ham Casserole

CREAMY CHEESY HAM TETRAZZINI Left Over Holiday Ham Casserole is a medium American recipe that serves 6. 460 calories per serving. Recipe by Catherine's Plates on YouTube.

Prep: 15 min | Cook: 55 min | Total: 1 hr 25 min

Cost: $12.67 total, $2.11 per serving

Ingredients

  • 2 cups Ham (diced leftover holiday ham, fully cooked)
  • 16 oz Spaghetti (thin spaghetti, whole‑grain or regular)
  • 1 cup Frozen Peas (no need to thaw)
  • 8 oz Sharp Cheddar Cheese (shredded; divided 4 oz for sauce, 4 oz for topping)
  • 4 Tbsp Unsalted Butter (cut into pieces)
  • 1 Tbsp Olive Oil (extra‑virgin preferred)
  • 1 medium Yellow Onion (peeled and diced)
  • 2.5 tsp Garlic (minced; fresh or jarred)
  • 0.25 cup All-Purpose Flour (for roux)
  • 2 cups Chicken Broth (low‑sodium preferred)
  • 1 cup Heavy Whipping Cream (or half‑and‑half)
  • ½ Tbsp Salt (for pasta water and seasoning)
  • ¼ tsp Black Pepper (freshly ground)
  • 1 spray Cooking Spray (to grease 9×13 baking pan)

Instructions

  1. Boil Pasta

    Fill a large pot with water, add a lid, bring to a rapid boil, season with ½ Tbsp salt, break the spaghetti in half and add to the water.

    Time: PT10M

  2. Drain Pasta

    When the pasta is al dente, drain it in a colander and set aside.

    Time: PT2M

  3. Prep Vegetables & Ham

    Dice the medium yellow onion, mince 2½ tsp garlic, and dice 2 cups cooked ham into bite‑size pieces.

    Time: PT5M

  4. Sauté Onion & Garlic

    In a large deep skillet over medium‑high heat, melt 4 Tbsp butter, add 1 Tbsp olive oil, then add the diced onion. Cook until softened, about 3 minutes, then add the minced garlic and cook 1 minute more.

    Time: PT4M

  5. Make the Roux

    Sprinkle ¼ cup all‑purpose flour over the softened onion‑garlic mixture. Whisk continuously for 1‑2 minutes until the flour turns a light golden color.

    Time: PT2M

  6. Build the Sauce

    Gradually whisk in ½ cup chicken broth, ½ cup pasta water (or regular water), and 1 cup heavy whipping cream. Bring to a gentle boil, stirring constantly, then add another 1 cup chicken broth. Let the mixture simmer until it thickens, about 5 minutes.

    Time: PT5M

  7. Incorporate Cheese

    Reduce heat to low and whisk in 4 oz shredded sharp cheddar until almost melted. Season with a pinch of salt and pepper, taste and adjust.

    Time: PT3M

  8. Add Peas and Ham

    Stir in 1 cup frozen peas (no need to thaw) and the diced ham. Add a splash more chicken broth if the sauce looks too thick. Heat through for 2‑3 minutes.

    Time: PT3M

  9. Combine Pasta and Sauce

    Add the drained spaghetti to the skillet. Using tongs, toss gently until every strand is evenly coated with the creamy sauce.

    Time: PT2M

  10. Transfer to Baking Dish

    Spray a 9×13‑inch baking pan with cooking spray. Pour the pasta mixture into the pan, spreading evenly. Sprinkle the remaining 4 oz shredded cheddar over the top.

    Time: PT3M

  11. Bake

    Preheat the oven to 350°F. Bake the casserole for 20‑25 minutes, until the top cheese is melted, bubbly, and lightly golden.

    Time: PT25M

    Temperature: 350°F

  12. Rest and Serve

    Remove from oven, let rest 5 minutes, then serve hot with a large spoon.

    Time: PT5M

Nutrition Facts

Calories
460
Protein
22 g
Carbohydrates
45 g
Fat
22 g
Fiber
4 g

Dietary info: Contains meat, Contains dairy, Contains gluten

Allergens: Dairy, Gluten, Shellfish (none, but note dairy and gluten)

Last updated: April 9, 2026

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CREAMY CHEESY HAM TETRAZZINI Left Over Holiday Ham Casserole

Recipe by Catherine's Plates

A comforting baked pasta casserole made with leftover holiday ham, thin spaghetti, peas, and a rich cheddar‑cheese sauce. Perfect for using up leftovers and feeding a crowd.

MediumAmericanServes 6

Shop all ingredients on Amazon in one click • Printable PDF with shopping checklist

Source Video
17m
Prep
52m
Cook
10m
Cleanup
1h 19m
Total

Cost Breakdown

$12.67
Total cost
$2.11
Per serving

Critical Success Points

  • Cooking the pasta al dente
  • Making a proper roux without browning
  • Fully melting the cheddar cheese on low heat
  • Baking until the top is bubbly and golden

Safety Warnings

  • Hot water and boiling pasta can cause severe burns; handle with care.
  • The skillet will be very hot when making the roux; use oven mitts.
  • The casserole will be extremely hot when removed from the oven; allow a short cooling period before serving.

Frequently Asked Questions

Everything you need to know about this recipe

Q

What is the cultural significance and history of creamy cheesy ham tetrazini in American comfort food cuisine?

A

Tetrazini casseroles originated in mid‑20th‑century American home cooking as a way to stretch leftovers into a hearty baked pasta dish. Using ham, cheese, and a creamy sauce reflects the post‑war emphasis on convenience, dairy richness, and making the most of holiday leftovers.

cultural
Q

What are the traditional regional variations of ham tetrazini in the United States?

A

In the Northeast, cooks often add New England clam juice or use elbow macaroni. In the South, a touch of hot sauce or Cajun seasoning is common, and some recipes swap cheddar for Monterey Jack. The Midwest tends to keep it simple with cheddar and peas, much like this recipe.

cultural
Q

How is creamy cheesy ham tetrazini traditionally served in American holiday meals?

A

It is typically served as a side or main dish at Thanksgiving and Christmas gatherings, placed alongside roasted vegetables, cranberry sauce, and a green salad. The casserole is usually presented hot from the oven, allowing guests to scoop generous portions onto their plates.

cultural
Q

What occasions or celebrations is creamy cheesy ham tetrazini traditionally associated with in American culture?

A

The dish shines at holiday leftovers meals, pot‑lucks, and casual family gatherings. Because it repurposes leftover ham, it’s especially popular the day after Thanksgiving and during Christmas week.

cultural
Q

How does creamy cheesy ham tetrazini fit into the broader American casserole tradition?

A

It exemplifies the American casserole ethos: a one‑dish, oven‑baked meal that combines starch, protein, and a creamy binder. Like tuna noodle or green bean casseroles, it offers comfort, ease, and the ability to stretch pantry staples.

cultural
Q

What are the authentic traditional ingredients for creamy cheesy ham tetrazini versus acceptable substitutes?

A

Traditional ingredients include cooked ham, thin spaghetti or other pasta, sharp cheddar cheese, a roux‑based cream sauce, peas, butter, and chicken broth. Acceptable substitutes are turkey or chicken for ham, linguine for spaghetti, Gruyère for cheddar, and half‑and‑half instead of heavy cream.

cultural
Q

What other American side dishes pair well with creamy cheesy ham tetrazini?

A

A crisp green salad with vinaigrette, roasted Brussels sprouts, garlic‑buttered green beans, or a simple apple‑cabbage slaw provide contrast to the rich casserole.

cultural
Q

What makes creamy cheesy ham tetrazini special or unique in American casserole cuisine?

A

Its use of leftover ham adds a smoky, salty depth, while the cheddar‑cream sauce creates a velvety texture that coats each pasta strand. The addition of peas gives a pop of color and freshness that many baked pasta dishes lack.

cultural
Q

What are the most common mistakes to avoid when making creamy cheesy ham tetrazini?

A

Common errors include overcooking the pasta (it becomes mushy), letting the roux brown too dark (bitter flavor), adding cheese over high heat (causing separation), and baking for too long (drying out the casserole). Follow the timing and low‑heat cheese steps to prevent these issues.

technical
Q

Why does this creamy cheesy ham tetrazini recipe use a roux instead of cornstarch as a thickener?

A

A roux made from butter and flour adds a richer, buttery flavor that complements the cheddar and cream, whereas cornstarch would give a more neutral, glossy thickness but lack depth. The roux also helps the sauce cling better to the pasta.

technical
Q

Can I make creamy cheesy ham tetrazini ahead of time and how should I store it?

A

Yes. Assemble the casserole up to the baking step, cover tightly, and refrigerate for up to 24 hours. When ready, bake as directed; you may need an extra 5‑10 minutes if the dish is cold.

technical
Q

What does the YouTube channel Catherine's Plates specialize in?

A

The YouTube channel Catherine's Plates specializes in approachable, family‑friendly American comfort food recipes, especially dishes that make clever use of leftovers and seasonal ingredients.

channel
Q

How does the YouTube channel Catherine's Plates' approach to American comfort cooking differ from other cooking channels?

A

Catherine's Plates focuses on practical, step‑by‑step tutorials with a warm, home‑kitchen vibe, emphasizing budget‑friendly meals and leftover transformations, whereas many other channels prioritize gourmet plating or exotic cuisines.

channel

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