Classic Lasagna

1 pound ground beef
3/4 cup chopped onion
2 tablespoons canola or olive oil
1(pound) can tomatoes
2 ( 6 ounce ) cans tomatoes paste
2 cups water
1 tablespoon chopped parsley
2 tablespoons salt
1 teaspoon granulated sugar
1 teaspoon garlic powder
1/2 teaspoon pepper
1/2 teaspoon oregano leaves
8 ounce lasagna
1 pound ricotta cheese
8 ounce mozzarella cheese, shredded or thinly sliced
1 cup grated Parmesan cheese

In large heavy pan,lightly brown beef and onion in oil.Add tomatoes(put through blender or cut with edge of spoon),tomato paste, water,parsley,salt,sugar,garlic powder,pepper and oregano; simmer uncovered, stirring occasionally, about 30 minutes. Meanwhile cook lasagna as directed on package; drain. In 13 x 9-inches baking pan, spread about 1 cup sauce. Then alternate layers of lasagna, sauce, ricotta, mozzarella and Parmesan cheese, ending with sauce, Mozzarella and Parmesan. Bake at 350 degrees F for 40 to 50 minutes until lightly brown and bubbling. Allow to stand for 15 minutes; cut in squares to serve. Makes 8 servings.