Granny Smith apples where named after Mrs. Mary Ann Smith, who first propagated the apple in the 1800s. The Granny Smith apple is small, green and hard. It has a tart flavor, unlike other sweet apples. However, it works well in salads because it does not brown as quickly as other apples, which makes it look nice longer. Plus, Granny Smith apple's tart flavor and crisp texture make a nice addition to a salad.
Wash all of the vegetables in warm water.
Core and cut up the Granny Smith apples into pieces ¼ inch wide.
Rip up the romaine or butter lettuce into 3-to-4-inch pieces. Place them in the large bowl with the spinach.
Peel the carrots and grate them on top of the lettuce and spinach.
Cut up ½ of a red onion into squares about 1/4 inch long and wide. Add the onion to the salad.
Sprinkle the ground pecans on the salad. Break up and sprinkle the feta onto the salad as well. Add the Granny Smith apples to the bowl of salad.
Drizzle balsamic vinaigrette over the salad to taste, about ½ cup, for the whole salad. Toss the ingredients until they are well mixed. Keep the salad in the refrigerator until you are ready to serve it.