Catalina dressing is a salad dressing that is tomato based. The more popular Catalina dressing used tomato ketchup as the main component. Vinegar, onion powder, garlic powder, Worcestershire sauce, celery seeds and paprika are then usually added to it. Some variations will call for a hot sauce, peppers, honey and sugar. This dressing is both sweet and sour, which is great for any salad.