Preheat the oven to 375.
In a large skillet, brown the meat with the onions, garlic and oregano. Drain the meat if necessary.
Stir in the spaghetti sauce and simmer for 5 minutes. Remove from the heat.
In a 9x13 baking dish, spread 1/2 cup of the sauce mixture to cover the bottom evenly.
Then layer 3 of the noodles, 1 cup of the cottage cheese and 1/2 cup of the mozzarella cheese.
For the next layer, start with 1 cup of the sauce mixture, 3 noodles, the rest of the cottage cheese and 1/2 cup of the mozzarella cheese.
Top with the last three noodles and the rest of the sauce mixture. Then cover with foil.
Bake for 30 minutes or until heated throughout.
Uncover and top with the rest of the mozzarella cheese. Bake, uncovered, for another 5 minutes or until the cheese is melted.
Let lasagna sit for 5 minutes before serving.