To begin, preheat your oven to roughly 350°F, so it is nice and hot by the time you are ready to slide your lasagna in to bake.
Next, prepare the noodles. If you are using no-boil noodles, you can skip this step – however, if you are using standard dry noodles, you will need to boil them in lightly salted water until they are tender, then drain them and rinse with cold water.
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Now place a large skillet on the stove over medium-high heat, and heat the olive oil in this. Toss in the onions, and sauté them until they begin to soften and turn translucent in colour. Add in the minced garlic and rosemary, as well as 1/2 teaspoon oregano, 1/2 teaspoon parsley, 1/4 teaspoon garlic powder, 1/2 tablespoon ground black pepper, and 1/2 teaspoon salt.
Sauté all this for around 2 minutes, then add in the ground turkey meat. Mash it and pull it apart with a wooden spoon or spatula, and cook it until it begins to brown. Pour in 1/2 cup of milk, turn the heat down to medium-low, and simmer until the meat is cooked through – this should take around 5 minutes. Add in 2.5 cups of marinara sauce, stir it in, and then take the pan off the heat.
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In a medium-sized bowl, mix the ricotta cheese, 1 cup of shredded parmesan (reserve 2/3 cup), and the remainder of all the herbs and spices, along with the salt and pepper. Mix it all together with a spoon.
Now, you are ready to begin assembling and layering the lasagna. Take a standard lasagna pan, and at the very bottom, spread the reserved cup of marinara sauce thinly and evenly. Then, layer on some lasagna noodles, lengthwise – it’s alright if they overlap.
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Onto the layer of noodles, spread 1/2 of ricotta mixture, and over this, 1/3 of the meat sauce. Add another layer of noodles, and then another layer of ricotta mixture and meat sauce. Keep repeating these steps until you reach the top of the pan (make sure you distribute your sauces and fillings evenly throughout the lasagna).
Spread the remaining sauces over the top-most layer of lasagna noodles (generally the third layer), then mix up the mozzarella and Parmesan. Sprinkle this all over the top of the lasagna. Cover the pan with tin foil (but make sure it doesn’t touch the cheese layer on top), and bake it for 20 minutes. Then, take the foil off the pan, and bake it for another 20 minutes.
The lasagna will be done once the cheese is bubbly and starting to brown. Take the pan out of the oven, and allow it to rest for around 10 to 15 minutes. Then, cut it into even, square slices, and serve.
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