Crumble ground beef into a 2-quart baking dish.

Stir in chopped onion.

Cover the dish with waxed paper.

Microwave on High for 5 to 7 minutes, stirring twice to ensure even cooking.

Drain the beef mixture well and set aside.

Place lasagna noodles in a 12 x 8 x 2-inch baking dish.

Cover the noodles with water and add 1/2 teaspoon of salt.

Cover the dish with heavy-duty plastic wrap.

Microwave on High for 14 minutes, rearranging noodles after 7 minutes for even cooking.

Drain the noodles and set aside.

In a separate bowl, stir together tomato sauce, tomato paste, dried oregano, dried basil, garlic powder, and mix into the beef mixture.

Combine cottage cheese, egg, and 1/2 teaspoon of salt in a bowl and mix well.

Spread a layer of tomato sauce over the bottom of the baking dish.

Top with a layer of noodles, followed by a layer of cottage cheese mixture, and then a layer of Mozzarella cheese.

Repeat the layering process with the remaining sauce, noodles, cottage cheese, and Mozzarella.

Top the final layer with grated Parmesan cheese.

Cover the dish and microwave on High for 13 to 18 minutes, rotating every 5 minutes to ensure even heating and melting of the cheese.