1: "Boost protein with Greek yogurt"

2: "Don't forget the crunch with celery"

3: "Swap mayo for avocado for a healthier option"

4: "Add in fresh herbs for flavor and antioxidants"

5: "Mix in chopped apples for a sweet surprise"

6: "Use whole grain bread for added fiber"

7: "Sprinkle with nuts or seeds for extra nutrition"

8: "Experiment with different seasonings for variety"

9: "Enjoy a satisfying and nutritious meal on the go"