Green Salad with Homemade French Dressing

Green Salad:

2 stalks celery, sliced

1 European-style cucumber, sliced into half moons

One 4-ounce log goat cheese, crumbled

1 head butter lettuce, torn

1 head romaine lettuce, chopped

1 pint cherry tomatoes, halved

French Dressing:

1/4 cup ketchup

1/4 cup white wine vinegar

1 tablespoon low-fat sour cream

1 teaspoon dry mustard

1 teaspoon Worcestershire sauce

1/2 teaspoon paprika

1/4 teaspoon cayenne pepper

Juice of 1/2 lemon

1/4 cup canola oil

Kosher salt and freshly ground black pepper