Preheat oven to 375°, and lightly grease an 8-inch square baking pan. In a food processor, combine oats, pecan pieces, ¼ teaspoon pumpkin pie spice and ¼ teaspoon salt; pulse until mixture resembles coarse sand. Add dates, coconut oil, 1 tablespoon maple syrup and ½ teaspoon orange zest. Process until mixture comes together, scraping down sides as needed. (TIP: Mixture should stick together when pressed between your fingers.) Transfer to prepared pan, and press evenly into bottom. Bake until lightly golden, about 10 minutes. Remove from oven, and set aside. Keep oven on.