Preheat your oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish.

In a large skillet over medium-high heat, warm the olive oil. Add the ground beef and onion, cooking until the meat is browned and the onion is soft, about 8-10 minutes. Drain any excess fat. Add the garlic and cook for 1 minute until fragrant.

Stir in the marinara sauce, tomato sauce, Italian seasoning, salt, and pepper. Reduce heat and simmer for 10 minutes, allowing the flavors to meld.

In a medium bowl, combine the cottage cheese, eggs, ¼ cup of the Parmesan cheese, and chopped parsley. Mix until well blended.

Spread 1 cup of the meat sauce evenly on the bottom of the prepared baking dish. Arrange a layer of no-boil noodles over the sauce (about 4 noodles). Spread one-third of the cottage cheese mixture over the noodles, then sprinkle with 1 cup of mozzarella cheese. Spoon 1 cup of meat sauce over the cheese.

Repeat the layering process two more times: noodles, cottage cheese mixture, mozzarella, meat sauce. For the final layer, top with the remaining noodles, the last of the meat sauce, the remaining mozzarella, and the remaining ¼ cup of Parmesan.

Cover the dish tightly with aluminum foil, making sure it doesn't touch the cheese. Bake for 40 minutes.

Remove the foil and continue baking for an additional 15-20 minutes, or until the top is golden brown and bubbly. Let it rest for 15 minutes before slicing for clean cuts.