Get a large pot of water on the stove to boil, salting it until it tastes like the sea. Cook the lasagna according to the directions until tender but not too soft (it will cook more in the oven!). While the water comes to a boil and the noodles cook, heat the canola oil in a large skillet over medium high heat. Brown the meatloaf mixture in it until it is all thoroughly cooked through. Add in the mushrooms, onion, garlic and rosemary to let them get soft and fragrant. Season everything with the pinch of salt and black pepper. Deglaze the pan with the wine and Worcestershire sauce and give the mixture a big stir. Let it all cook together for a couple of minutes to allow the wine to cook off. Then take it off the heat and let it cool so that it won't scramble the egg in the filling.

While the meat mixture cools, combine 1 (15 ounce) container plus 2/3 of another container of ricotta, the parmesan, the egg and another pinch of salt in a large bowl. Add the cooked and cooled meat mixture into the bowl with it and stir it all together to make the meaty, savory filling. Take the remaining ricotta and stir it in thoroughly with the marinara sauce in another bowl. Set both bowls aside. The lasagna noodles should be ready by this time. Drain them and lay them out flat on a clean surface as soon as they are cool enough to handle so that they don't stick together.

Take a large 9 x 13 lasagna pan and grease the bottom with a little of the creamy marinara sauce. Scoop a heaping 1/4 cup of the meaty filling along the length of the first lasagna noodle and roll it up tightly. Place it seam side down in the lasagna pan and repeat until all 18 noodles are filled, rolled up and lined up in the lasagna pan. Spoon the rest of the marinara sauce in a generous layer over the noodles, then spread the mozzarella in a generous layer on top.

At this point, the tray ideally should be covered and refrigerated overnight if possible. It lets the flavors marry and makes it conveniently a make ahead entertainment wonder. It can also be frozen for a couple of weeks! When you're ready to heat them up, pre-heat the oven to 350. If they're coming out of the refrigerator, 30-40 minutes will get them bubbly and glorious. If frozen, it will take 50 minutes to an hour. Serve immediately and enjoy with salad and garlic bread!