1. Cut, peel white pith from oranges with small paring knife. Cut orange sections free from membranes. Set aside.
2. Cook bacon in a skillet over medium heat, stirring occasionally until golden and crisp. Transfer with a slotted spoon to paper towels to drain.
3. In large bowl, combine spinach, orange sections, red onion, shrimp, cabbage and blue cheese, toss well. Divide evenly among 4 serving plates. Top each salad with one egg.
4. Serve with blue cheese salad dressing. (Dressing not included in nutritional analysis.)