Cook the beef until browned if it has not been cooked yet. Let some of the excess fat drain by placing the cooked beef on a stack of paper towels or similar item while you make the sauce.
Heat the oil in a large skillet on medium heat for one minute then add the chopped onion and garlic to the pan and saute until the onion is translucent (about two minutes).
Stir in the crushed tomatoes, tomato paste, and seasonings to the skillet. Then turn the heat down to low medium and simmer the sauce for up to 20 minutes to allow the flavors to meld.
To make the cheesy filling, in a large bowl, combine the ricotta cheese, egg, and grated Parmesan cheese. You can then mix the ingredients well until they are smooth and combined.
Preheat your oven to 375°F (190°C). Grease your bundt pan with nonstick cooking spray or with a light coating of oil.
Assemble the ingredients in layers . Start by placing a layer of cooked lasagna noodles at the bottom of the greased bundt pan, allowing them to slightly overlap. Press the noodles gently to adhere to the shape of the pan. Spread a thin layer of the ricotta cheese mixture over the noodles. Then add a layer of the meat sauce.
Sprinkle shredded mozzarella cheese over the meat sauce. Trim any noodles that overhang the sides of the bundt pan.
Place the half of the cut noodles over the cheese. Continue layering in the following order: ricotta mixture, meat sauce, mozzarella cheese, and trimmed noodles. Fold the edges of the noodles over the top.
Finish with the remaining meat sauce and mozzarella cheese.
Place the bundt pan in your preheated oven and bake for about 25-30 minutes, or until the cheese is melted and bubbly, and the edges are golden brown. Lastly, let the lasagna set before serving.