Delicious Leftover Ham and Orzo Casserole ❤️

Delicious Leftover Ham and Orzo Casserole ❤️ is a easy American recipe that serves 6. 394 calories per serving. Recipe by Rachel's Step by Step on YouTube.

Prep: 38 min | Cook: 53 min | Total: 1 hr 46 min

Cost: $7.79 total, $1.30 per serving

Ingredients

  • 2.5 cups Orzo Pasta (dry, any brand)
  • 2.5 tablespoons Olive Oil (extra virgin preferred)
  • 0.25 cup Green Onions (chopped)
  • 0.25 cup Yellow Onion (chopped)
  • 1 cup Celery (chopped)
  • 2 tablespoons All-Purpose Flour (for thickening roux)
  • 2 cups Diced Tomatoes (fresh or canned)
  • 0.5 cup Chicken Broth (low‑sodium)
  • 0.5 teaspoon Salt (or to taste)
  • 0.25 teaspoon Onion Powder
  • 0.25 teaspoon Garlic Powder
  • 0.5 teaspoon Oregano (dried)
  • 1.5 cups Diced Ham (leftover cooked ham, diced)
  • 2.5 ounces Black Olives (pitted, sliced if desired)
  • 2.5 cups Monterey Jack Cheese (freshly grated; can substitute mild cheddar or mozzarella)
  • to taste Black Pepper (freshly ground)
  • pinch Cayenne Pepper (optional for heat)
  • as needed Non‑Stick Spray (to coat casserole dish)

Instructions

  1. Cook Orzo Pasta

    Bring 2½ cups of water to a rolling boil in a small saucepan. Add the dry orzo, stir frequently to prevent sticking, and cook for about 10 minutes until al dente. Drain, give a quick rinse, and set aside.

    Time: PT12M

    Temperature: boiling

  2. Sauté Onions and Celery

    Heat a skillet over medium heat, add 2½ tbsp olive oil, then add ¼ cup chopped green onions and ¼ cup chopped yellow onion. Cook, stirring, until the onions become slightly translucent (about 3‑4 minutes). Add 1 cup chopped celery and sauté for another 30 seconds.

    Time: PT5M

    Temperature: medium

  3. Add Flour and Toast

    Sprinkle 2 tbsp all‑purpose flour over the softened onions and celery. Stir continuously for about 2 minutes until the flour turns a light golden color, forming a roux.

    Time: PT2M

    Temperature: medium

  4. Add Tomatoes, Broth and Seasonings

    Stir in 2 cups diced tomatoes, ½ cup chicken broth, ½ tsp salt, ¼ tsp onion powder, ¼ tsp garlic powder, and ½ tsp dried oregano. Bring the mixture to a gentle simmer, then lower the heat and let it simmer for 5‑6 minutes.

    Time: PT6M

    Temperature: low

  5. Combine Ham, Orzo, Olives, and Cheese

    Add 1½ cups diced ham, the cooked orzo, 2½ oz sliced black olives, and 1½ cups shredded Monterey Jack cheese to the skillet. Stir until everything is evenly coated and the cheese begins to melt.

    Time: PT3M

    Temperature: medium

  6. Assemble Casserole

    Lightly spray the 7"×11" casserole dish with non‑stick spray. Transfer the mixture into the dish, spreading it evenly. Sprinkle the remaining 1 cup of shredded Monterey Jack on top, add a pinch of black pepper, and optionally a pinch of cayenne pepper for heat.

    Time: PT5M

  7. Bake Casserole

    Preheat the oven to 350°F. Place the casserole on the center rack and bake for 25‑30 minutes, or until the edges are bubbly and the cheese on top is golden brown.

    Time: PT30M

    Temperature: 350°F

  8. Cool and Serve

    Remove the casserole from the oven and let it rest for about 5 minutes before slicing. Serve warm with a simple green salad and crusty bread.

    Time: PT5M

Nutrition Facts

Calories
394
Protein
20 g
Carbohydrates
60 g
Fat
30 g
Fiber
3 g

Dietary info: Contains meat, Contains dairy, Contains gluten

Allergens: Dairy, Gluten, Pork

Last updated: April 9, 2026

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Delicious Leftover Ham and Orzo Casserole ❤️

Recipe by Rachel's Step by Step

A comforting, cheesy casserole that transforms leftover ham and quick‑cooking orzo into a hearty main dish. Perfect for a quick dinner served with a simple salad and crusty bread.

EasyAmericanServes 6

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

Source Video
12m
Prep
56m
Cook
10m
Cleanup
1h 18m
Total

Cost Breakdown

$7.79
Total cost
$1.30
Per serving

Critical Success Points

  • Cooking the orzo al dente without overcooking.
  • Toasting the flour to create a proper roux.
  • Baking until the casserole is bubbly and the cheese is golden.

Safety Warnings

  • Handle boiling water and hot skillet with oven mitts to avoid burns.
  • Use a timer when cooking the orzo to prevent over‑cooking.
  • Ensure the casserole is fully heated through before serving.

Frequently Asked Questions

Everything you need to know about this recipe

Q

What is the cultural significance and history of Leftover Ham and Orzo Casserole in American comfort food cuisine?

A

Casseroles became popular in mid‑20th‑century America as a way to stretch leftovers into a new, family‑friendly meal. Using ham and orzo reflects the tradition of turning holiday or weekend leftovers into a warm, cheesy bake that can feed a crowd with minimal effort.

cultural
Q

What are traditional regional variations of ham and orzo casserole in United States cuisine?

A

In the Midwest, cooks often add corn or peas for extra sweetness. In the South, a touch of Creole seasoning or hot sauce is common, and some versions swap Monterey Jack for sharp cheddar or pepper jack for a spicier profile.

cultural
Q

How is Leftover Ham and Orzo Casserole traditionally served in American households?

A

It is typically served hot from the oven, sliced into squares, and paired with a simple green salad and crusty bread or rolls. It’s a popular pot‑luck or family dinner dish because it’s easy to portion and reheat.

cultural
Q

On what occasions or celebrations is Leftover Ham and Orzo Casserole traditionally associated in American culture?

A

The dish often appears after holidays like Easter or Christmas when ham leftovers are abundant. It’s also a go‑to for casual weekend meals, pot‑luck gatherings, and school‑night dinners.

cultural
Q

How does Leftover Ham and Orzo Casserole fit into the broader American casserole tradition?

A

It follows the classic casserole formula: a starch (orzo), protein (ham), vegetables, a creamy sauce, and a cheese topping. This combination embodies the American love for hearty, one‑dish meals that can be assembled quickly and baked.

cultural
Q

What are the authentic traditional ingredients for Leftover Ham and Orzo Casserole versus acceptable substitutes?

A

Traditional ingredients include orzo pasta, cooked ham, Monterey Jack or mild cheddar cheese, diced tomatoes, and a simple flour‑based sauce. Substitutes can be any small pasta, leftover turkey, mozzarella, canned diced tomatoes, or gluten‑free flour if needed.

cultural
Q

What other American dishes pair well with Leftover Ham and Orzo Casserole?

A

A crisp mixed green salad with vinaigrette, roasted seasonal vegetables, or a simple coleslaw complement the richness. Warm crusty bread or garlic knots are also popular side options.

cultural
Q

What are the most common mistakes to avoid when making Leftover Ham and Orzo Casserole?

A

Overcooking the orzo, not toasting the flour long enough, and using too much broth which can make the casserole soggy are the biggest pitfalls. Also, be careful not to over‑salt because the ham already adds saltiness.

technical
Q

Why does this Leftover Ham and Orzo Casserole recipe use a flour roux instead of cornstarch as a thickener?

A

A flour roux creates a richer, velvety sauce that coats the orzo and ham evenly, while cornstarch can give a glossy but thinner texture. The roux also adds a subtle toasted flavor that enhances the overall comfort‑food profile.

technical
Q

Can I make Leftover Ham and Orzo Casserole 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, adding a few extra minutes if the dish is cold.

technical
Q

What does the YouTube channel Rachel's Step by Step specialize in?

A

The YouTube channel Rachel's Step by Step specializes in clear, step‑by‑step home cooking tutorials that focus on everyday comfort foods, quick weeknight meals, and practical ways to use leftovers.

channel
Q

How does the YouTube channel Rachel's Step by Step's approach to American comfort food differ from other cooking channels?

A

Rachel's Step by Step emphasizes minimal equipment, straightforward ingredient lists, and real‑world tips like using pantry staples and leftovers, whereas many other channels focus on gourmet techniques or elaborate presentations.

channel

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