Spinach Citrus Salad

This Spinach Citrus Salad is a dish that I like to prepare when I'm eating a protein that is fairly heavy in comparison, and when I want something to really clean my palate after the dish.  Whereas most people like to eat salad prior to their main dish, this is a salad I like to finish of with because of how light it is, and also because of how sweet and fresh it tastes.  

Ingredients:

3 c. Baby spinach
1 Grapefruit, segmented
1 Orange, segmented
Zest of one orange
Zest of one lemon
2 tbsp. Pecans
Salt and pepper to taste
2 tbsp. Olive oil
2 tbsp. Balsamic vinegar

In a large bowl combine the spinach, grapefruit, orange, and the zest of half of the lemon, and half of the orange, and top with pecans.  When you segment the fruit, use the remainder of the juices for the dressing.  In a separate small bowl with these fruit juices, zest the remainder of the lemon and orange, and the balsamic vinegar.  Whisk together all the ingredients, and slowly add the olive oil while whisking the mixture so you emulsify the liquids.  Add salt and pepper to taste.  Toss the dressing with the salad immediately before serving.