Price Each: $11.17USD
4 tbsp canola or olive oil 1/2 cup chopped onion 1/4 cup chopped celery 1 clove garlic 2 cups water 1 (6 oz) can tomato paste 1/2 tsp sugar 1/4 tsp basil 1/8 tsp pepper 2/3 cup Parmesan cheese, grated 1/2 lb rigatoni, cooked 1 lb Ricotta cheese