Preheat oven to 375°F (190°C).

Brown ground beef and chopped onion in a skillet over medium heat. Drain excess fat.

In a separate bowl, mix tomatoes, tomato paste, water, 1 tablespoon of parsley, garlic powder, and oregano.

Add the tomato mixture to the cooked ground beef and bring to a simmer.

In a baking dish, layer the meat sauce, uncooked lasagna noodles, cottage cheese, mozzarella cheese, and Parmesan cheese.

Repeat layers until all ingredients are used, ending with a layer of mozzarella and Parmesan cheese.

Cover the baking dish with foil and bake for 30 minutes.

Remove the foil and bake for an additional 30 minutes, or until the cheese is melted and bubbly.

Let stand for 10 minutes before serving.