Take 1/2 cup French dressing and add one of the following:
Anchovy French Dressing: 2 tsp finely cut anchovies
Bombay French Dressing: 1/4 tsp curry powder; 1 chopped hard-cooked egg; 1/2 tsp minced onion
Cranberry French Dressing: 2 TBS canned whole cranberry sauce
Florentine French Dressing: 1 TBS finely chopped raw spinach
Mustard French Dressing: 1 TBS prepared mustard
Parmesan French Dressing: 2 TBS grated Parmesan cheese
Soy French Dressing: 1 TBS soy sauce
Zesty French Dressing: 1 TBS Worcestershire sauce