1: "Start with whole grain bread for added fiber and nutrients."

2: "Layer on lean protein like grilled chicken or turkey slices."

3: "Add plenty of fresh vegetables for added vitamins and minerals."

4: "Choose healthy fats like avocado or hummus as spreads."

5: "Opt for low-fat cheese or skip it altogether for less saturated fat."

6: "Experiment with different flavors like pesto or chipotle mayo."

7: "Try using whole fruits like apple slices or berries for sweetness."

8: "Don't forget to season with herbs and spices for extra flavor."

9: "Enjoy your nutritious and delicious sandwich guilt-free!"