Egg Noodle Lasagna

I have been wanting to make this cause I love it and it's easy to make...Here's the recipe...

1 pound ground beef
1 onion
1 jar spaghetti sauce
16 oz. bag of egg noodles
1 block of cream cheese
1 cup cottage cheese

Boil pasta, mix with cream cheese and cottage cheese. Brown beef and drain, add onion and mix with sauce. Layer noodles, sauce, noodles, etc. Bake 30 minutes at 350 degrees covered, uncover and bake for another 10 minutes. (I sprinkled shredded cheese on top but it's not a must).