Baby Greens With Avocados & Pears

2 oranges
3 tablespoons extra virgin olive oil
3/4 teaspoon salt
1/4 teaspoon coarsely ground black pepper
12 ounces mixed baby greens (24 cups)
3 firm, ripe pears, cored and cut into 1/2-inch dice
2 ripe medium avocados, peeled and cut into 1/2-inch dice
From oranges, grate 2 teaspoons peel and squeeze 1/2 cup juice. In large bowl, with wire whisk or fork, mix orange peel, orange juice, olive oil, salt, and pepper. Add baby greens, pears, and avocados; toss to coat.