Homemade Spaghetti Sauce is the only way to go. It is so much better and so so easy to make.
chopped onion to taste
2 pounds canned tomatoes, cut up
8 ounces tomato sauce
12 ounces tomato paste
2 tablespoons parsley
1 tablespoon brown sugar (optional)
1 teaspoon dried oregano leaves
1 teaspoon dried basil leaves
1 teaspoon salt
1/4 teaspoon pepper
Saute onion in frying pan, transfer to crockpot.
Add remaining ingredients. Cover and cook on low for 6-8 hours.