Bring a large pot of lightly salted water to a boil. Cook noodles in boiling water for 8 to 10 minutes, or until al dente; drain.
In a large skillet over medium heat, saute ground beef, onions, salt and garlic salt until meat is brown. Drain excess fat, add spaghetti sauce to beef mixture, and bring to a boil. Reduce heat, and simmer for 15 to 20 minutes.
Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13 inch glass baking pan.
Line bottom of pan with three lasagna noodles. Spread 1/3 of sauce mixture over noodles. Layer 1/3 of the cottage cheese over the sauce. Sprinkle 1/3 of the mozzarella over the cottage cheese. Repeat this layering process until all ingredients are used
Bake in the preheated oven for one hour. Let stand for 10 minutes before serving.