Classic Lasagne

Ingredients

• 1 lb. ground beef
• 3/4 c. chopped onion
• 2 Tbsp. salad oil
• 1 (1 lb.) can tomatoes
• 2 (6 oz. each) cans tomato paste
• 2 c. water
• 2 tsp. salt
• 1 tsp. sugar
• 1 tsp. garlic powder
• 1/2 tsp. pepper
• 1/2 tsp. oregano leaves
• 1/2 pkg. (8 oz.) Mueller's lasagne
• 1 lb. Ricotta cheese or cottage cheese
• 8 oz. Mozzarella cheese
• 1 c. Parmesan cheese