Instructions

  1. In a large salad bowl, toss the spinach, oranges, mushrooms and bacon. Set aside.
  2. In a blender or food processor, combine the ketchup, vinegar, Worcestershire sauce, sugar, onion, salt and pepper.
  3. Cover and process until smooth.
  4. While blending, gradually add oil in a steady stream.
  5. Yields 4-6 servings.