Chunky Italian Spaghetti Sauce

2 (16 ounce) cans diced tomatoes

2 (15 ounce) cans tomato sauce

1 tablespoon garlic powder

2 teaspoons white sugar

2 teaspoons dried parsley

½ teaspoon salt

¼ teaspoon dried oregano

¼ teaspoon dried basil

¼ teaspoon ground black pepper