Four Cheese Lasagna(Low-Fat)

Preheat oven to 350°. Spray 9 x 13-inch pan with nonfat cooking spray.

Brown hamburger and pour spaghetti sauce over it.

Beat egg whites with cottage and Ricotta cheeses.

Layer ingredients in the following order: lasagna noodles, 1/3 of Ricotta and cottage cheese mixture, 1/2 of hamburger, 1/2 pound of Mexican cheese, lasagna noodles, 1/3 of Ricotta and cottage cheese mixture, rest of hamburger, 1/2 pound of Mozzarella, lasagna noodles, rest of Ricotta and cottage cheese mixture, 1/2 pound Mexican cheese and 1/2 pound Mozzarella cheese.

Sprinkle with Parmesan cheese.

Bake for 50 minutes.

Let cool for a few minutes before cutting.