MEAT SAUCE
Heat olive oil and unsalted butter in a large skillet or saucepan over medium heat.
Add minced garlic and sauté until fragrant, about 1 minute.
Add ground beef to the skillet along with the Italian seasoning, paprika, red pepper flakes, onion powder, garlic powder, oregano, black pepper, and salt.
Mix together and cook until browned, breaking it apart with a spatula as it cooks.
Once the beef is browned, stir in marinara sauce and beef broth. Bring the mixture to a simmer and cover.
Add chopped basil, parsley, and parmesan to the sauce and stir to combine.
Cover and let it simmer for 30 minutes while you make the bechamel sauce next.
BECHAMEL SAUCE
In a separate saucepan, melt unsalted butter over medium heat.
Once the butter is melted, whisk in all-purpose flour to form a roux. Cook the roux for 2 to 3 minutes, stirring constantly, until it turns a light golden color.
Gradually pour in whole milk while whisking continuously to prevent lumps from forming.
Add salt, black pepper, cream cheese, freshly grated parmesan, and a dash of nutmeg to the saucepan. Whisk until smooth and well combined.
Allow the sauce to simmer for a few minutes until it thickens slightly. Remove from heat and set aside.
ASSEMBLY
Preheat your oven to 350°F.
In a large baking dish, spread a thin layer of meat sauce on the bottom.
Place a layer of oven-ready lasagna sheets over the meat sauce, covering the bottom of the dish.
Spoon a layer of meat sauce over the lasagna sheets, followed by a layer of bechamel sauce.
Sprinkle a handful of shredded mozzarella over the sauces.
Repeat the layers 2 times for a total of 3 layers and then end with a layer of lasagna sheets, bechamel sauce, and shredded mozzarella with parmesan on top of the last lasagna sheets.
Bake in the preheated oven for about 45 to 50 minutes, monitoring it closely. After 20 to 30 minutes, check on it and if the cheese is browning too fast, cover with foil and continue letting it cook.
Once the lasagna is cooked through and the cheese is bubbly and golden, remove it from the oven and let it cool for 10 to 15 minutes before slicing and serving.