Assembly
- Heat the olive oil and butter in a large pot over medium-high heat.
- Add the carrot, celery, and onion. Saute, stirring occasionally, until translucent, about 5 minutes.
- Season with salt, add the garlic and chili flakes, and cook for an additional minute.
- Add the tomato paste and cook, stirring constantly, until the tomato paste coats the bottom of the pan and turns a deep, brick red color, about 3 minutes.
- Add the ground beef, ground pork, and pancetta. Cook until no longer pink, about 10 minutes.
- As it cooks, season with salt and use a wooden spoon or spatula to smash the meat and break it into small bits.
- Stir in the milk and wine, and bring to a simmer.
- Add the oregano, cover, and reduce to the lowest temperature. Simmer for 1½ hours, stirring occasionally.
- Remove from heat and skim most of the fat (not all of it, leave a little bit for flavor).
- Season with more salt, if desired.
- Make the ricotta béchamel while the bolognese simmers. Melt the butter in a medium pot over medium-low heat.
- Add the flour and cook for 1 minute, stirring constantly with a wooden spoon or spatula.
- In a steady stream, whisk in the milk. Bring to a simmer and cook on medium-low for 1 minute to thicken.
- Stir in the salt and nutmeg and remove from heat.
- Let cool for 15 minutes, then stir in the ricotta cheese. Season with more salt, if desired.
- Heat the oven to 375°F and brush a 9x13 inch pan with olive oil.
- Boil the lasagna noodles in a large pot of heavily salted water to just under al dente (usually about 1 minute less than the package’s instructions).
- Drain and slick them with a little bit of olive oil to prevent sticking.
- Spread ¾ cup of the ricotta béchamel on the bottom of the pan and top with a layer of noodles, with little to no overlap.
- Spread another ¾ cup of béchamel on top of the noodles, then spread ¼ of the bolognese on top (about 1¼ cups).
- Top with a liberal dusting of parmesan cheese (about ⅓ cup).
- Top with another layer of noodles and repeat this layering process 4 more times, giving you 5 layers of pasta. You should have used the last of the bolognese on the 4th layer.
- Top the final layer with the remaining béchamel, the remaining parmesan, and all of the mozzarella cheese.
- Bake uncovered for 35-40 minutes, until the sauce bubbles up on the sides and the top is browned.
- Let cool 15 minutes, sprinkle the chopped parsley on top, slice, and serve.
Note: Most conventional dried lasagna noodle packages have enough noodles to do 4 layers of 4 noodles. Since OUR lasagna is 5 layers, use a knife or kitchen shears to cut 3 of the noodles in half. Use the halves in lieu of a full sheet, giving each layer of the lasagna 3½ noodles instead of 4.