Apple, Cheese and Toasted Walnut Salad

Dressing

• 1/3 cup vegetable oil
• 1/4 cup sugar
• 3 tablespoons white wine vinegar
• 1 tablespoon finely chopped red onion
• 1/2 teaspoon salt
• 1/2 teaspoon ground mustard
• 1/4 to 1/2 teaspoon celery seed

Salad

• 1 medium head romaine lettuce, torn into bite-size pieces (about 10 cups)
• 4 cups mixed salad greens (from 10-oz bag)
• 1 container (4 oz) blue or Gorgonzola cheese crumbles
• 1 cup walnut halves, toasted
• 2 red apples, cut into bite-size pieces