California Cobb Salad with Grapes

Name: California Cobb Salad with Grapes
Ingredients: 1 12-ounce package romaine lettuce hearts, washed, dried, and chopped (about 7 cups); 2 cups turkey breast, 1/2-inch dice; 2 avocados, 1/2-inch dice; 2 cups California seedless grapes, rinsed; 1 cup blue cheese, crumbled; 1 cup bacon bits; 1 cup slivered almonds, lightly toasted; 1/2 cup mayonnaise; 1/3 cup sour cream; 2 teaspoons white wine vinegar; 1 1/2 teaspoons anchovy paste; 2 tablespoons minced tarragon, fresh; 3 tablespoons minced chives or green onions; 2 tablespoons minced parsley; 1/4 teaspoon ground pepper; pinch salt