The recipe is a combination of recipes from Martha and Giada. Martha used feta and added chopped mint. As I recall, Giada served hers with shavings of Parmesan.
Celery Salad inspired by Martha and Giada
6 stalks of celery, sliced 1/2 inch thick
1/2 small red onion, thinly sliced
1 Tbsp olive oil
1 Tbsp lemon zest
1 Tbsp fresh lemon juice
Coarse sea salt to taste
1/2 cup feta cheese
1. Combine the olive oil, lemon zest, lemon juice and salt to taste. Pour over the celery and onion.
2. Stir in the feta cheese and serve.