I'm a huge fan of Panera's Fuji Apple Salad but if you don't have a Panera nearby you can easily make this salad yourself:)
3 cups lettuce
1 cup spinach leaves
1 Fuji apple (or apple chips)
1/4 cup crumbled reduced-fat feta cheese
1/4 cup thinly sliced red onion
2 tbsp. walnut pieces
Optional: 4 oz grilled chicken
Optional: freshly ground black pepper, light vinaigrette dressing (or any low-cal dressing)
If using a Fuji apple cut apple into quarters and remove the core, seeds, and stem. Thinly slice, and then cut the slices in half widthwise.
Toss together all ingredients except the walnut pieces. Plate your salad, and then sprinkle walnuts evenly on top. You can add some pepper and/or dressing if you like, but this salad's so flavorful you may not even need 'em.