Barb's Crockpot Lasagna

1 pound ground chuck (browned & drained)
28 ounce jar of pasta sauce
1 cup water
2 cups shredded mozzarella
12 ounces lowfat cottage cheese
1/2 cup shredded parmesan
lasagna noodles

Mix cooked ground beef, pasta sauce and water. Set aside. Combine all cheeses in a separate bowl. Put small amount of sauce in crockpot, then layer in order: noodles, sauce, cheese, ending with a layer of cheese. Depending on your crockpot size, you may have 2 or 3 layers. Cook on low for 4 hours. Let stand uncovered for 15 minutes before serving.