Mom's Lasagna

This is my mom's famous lasagna recipe. I haven't had any lasagna yet that can top it (my opinion of course)!

1/2 onion, chopped
1/4 lb. mushrooms, sliced
1 lb. ground beef
1 6oz. can tomato paste
1 8oz. can tomato sauce
1/2 tsp. oregano
1/2 tsp. basil
garlic powder to taste (or fresh garlic)
lasagna noodles (uncooked)
8 oz. cottage cheese or ricotta (add more if desired)
1/2 lb. mozzarella cheese, grated (add more if desired)
1/2 c. water

Cook onions in small amount of oil. Add mushrooms and cook until soft. Add ground beef and brown. Add tomato paste, sauce and seasonings. Place uncooked noodles in square pan coated with cooking spray. Spread with 1/2 of sauce. Place cottage cheese or ricotta over the sauce. Top with 1/2 of the grated mozzarella. Add another layer of noodles and top with remaining sauce. Pour water over all and cover with foil. Bake at 325 degrees for 1 hour 15 minutes. Add rest of cheese and let sit with foil on top for 5 to 10 minutes or until cheese melts. (This recipe doubles well to fit into a 9x13 pan).