Italian plum tomatoes, also called Roma tomatoes, contain less moisture than other tomatoes. Consequently, the small oval tomatoes are packed with flavor. This makes them the choice for tomato products such as paste and sauce.
Look for southwest-flavor sour cream dip next to other dips in the dairy section of the grocery store.
One cup of sour cream blended with 1 tablespoon of dry taco seasoning mix can be used in place of southwest-flavor sour cream dip.