Greek Pastitsio with Yogurt Béchamel

Steps

1. 1

   Brown the meat and build the sauce

   • Heat 2 tbsp olive oil in a large skillet or Dutch oven over medium-high heat.
   • Add the 1.5 lbs ground beef, breaking it apart with a spoon as it cooks.
   • Brown for 5–7 minutes until no pink remains and the meat reaches an internal temperature of 160°F (71°C), checked with a meat thermometer.
   • Drain off excess fat if more than 1–2 tablespoons remain in the pan.
   • Add the diced onion to the beef, stirring occasionally, and cook for about 3 minutes until softened and translucent.
   • Add the minced garlic and cook for 30 seconds until fragrant.
   • Stir in 2 tbsp tomato paste, coating the meat and vegetables, and cook for 1 minute.
   • Pour in the 1 can (14–15 oz / 410 g) crushed tomatoes, scraping up any browned bits.
   • Add 1 tsp dried oregano, 0.5 tsp kosher salt, 0.25 tsp black pepper, and 0.25 tsp cinnamon if using.
   • Reduce heat to medium-low and simmer for 10 minutes, stirring occasionally, until the sauce thickens slightly and flavors meld.
   • The mixture should be rich and deep, with no watery liquid pooling on top.

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   Ready when: Meat reaches 160°F (71°C) internal temperature, is fully browned with no pink; sauce is thick, rich, and dark

   Tip: Use a meat thermometer to ensure the ground beef safely reaches 160°F (71°C); drain excess fat after browning to prevent a greasy final dish

2. 2

   Cook the pasta

   • While the meat sauce simmers, add 1 lb penne or rigatoni pasta to the pot of boiling salted water (prepared during the before-you-start step).
   • Stir once to separate the noodles.
   • Cook for 8–10 minutes according to package directions, until the pasta is al dente—tender but still firm when you bite it, with no mushiness.
   • Drain the pasta in a colander but do NOT rinse it.
   • The starch remaining on the pasta helps bind everything together in the oven.

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   Ready when: Pasta is tender but still slightly firm in the center; drain without rinsing

   Tip: Don't rinse pasta; the starch helps bind the dish and creates a cohesive casserole

3. 3

   Make the yogurt béchamel sauce

   • In a medium saucepan, melt 3 tbsp unsalted butter over medium heat.
   • Add 3 tbsp all-purpose flour, whisking until it forms a smooth paste.
   • Cook this roux for about 1 minute, stirring constantly, until it turns light brown and smells slightly toasted.
   • Slowly pour in 1.5 cups whole milk while whisking constantly to prevent lumps from forming.
   • Continue whisking for 3–4 minutes until the sauce thickens enough to coat the back of a spoon—it should look like thick gravy, not thin sauce.
   • Remove the saucepan from heat.
   • Whisk in 1 cup plain Greek yogurt until completely smooth and fully incorporated.
   • The yogurt adds tanginess and richness.
   • In a small bowl, lightly beat 2 large eggs.
   • Slowly drizzle the beaten eggs into the warm sauce while stirring constantly with the whisk.
   • This gradual tempering prevents the eggs from scrambling.
   • The finished sauce should be creamy and free of lumps.
   • Season with 0.5 tsp ground nutmeg, 0.25 tsp salt, and a pinch of black pepper.
   • Stir well.
   • The sauce should be creamy, smooth, and aromatic.

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   Ready when: Sauce is creamy, smooth, and coats the back of a spoon; no lumps

   Tip: Temper the eggs by slowly whisking them into the warm béchamel. Adding eggs directly to hot sauce can scramble them and create a grainy texture

4. 4

   Assemble the pastitsioOven 375°F / 190°C

   • Preheat the oven to 375°F (190°C) if you haven't already.
   • In a large bowl, combine the drained pasta with the meat sauce.
   • Stir gently but thoroughly until the pasta is evenly coated and mixed throughout.
   • Spread half of the pasta-meat mixture into the prepared 9×13-inch (23×33 cm) baking dish, pressing gently to create an even layer.
   • Pour about half of the yogurt béchamel over the pasta layer, spreading it with a spatula to cover as much surface as possible.
   • Layer the remaining pasta-meat mixture on top, again pressing gently to distribute evenly.
   • Pour the remaining béchamel sauce over the top, spreading it to cover the entire surface completely.
   • This ensures a golden, creamy top when baked.
   • Sprinkle the 0.25 cup grated Parmesan cheese evenly over the top if using.

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   Tip: Make sure the final layer of béchamel covers the pasta completely for an even golden top

5. 5

   Bake until goldenOven 375°F / 190°C

   • Place the baking dish on a baking sheet (to catch any drips) and transfer to the preheated 375°F (190°C) oven.
   • Bake for 40–50 minutes.
   • The pastitsio is done when the top is golden brown (not pale), the sauce is bubbling gently around the edges, and a thin knife or skewer inserted into the center comes out hot to the touch.
   • If the top seems to be browning too quickly before the center is set (before 35 minutes), loosely tent with aluminum foil and continue baking.

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   Ready when: Top is golden brown, edges bubble gently, knife inserted in center comes out hot

   Tip: Tent with foil if the top browns too fast before the center is heated through

6. 6

   Rest before serving

   • Remove the pastitsio from the oven and let it rest at room temperature (on the counter or a trivet) for 10 minutes before serving.
   • This resting period allows the layers to set and firm up slightly, making it much easier to cut and plate neat portions.
   • The dish will still be warm and delicious.

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   Tip: Skipping the rest results in sloppy, hard-to-portion servings; the 10 minutes is essential