Cauliflower Tacos al Pastor

Name: Cauliflower Tacos al Pastor
Ingredients: ¼ cup achiote (annatto) paste (such as Goya), crumbled; ¼ cup olive oil; 1 teaspoon orange zest plus 1/2 cup fresh juice (from 2 oranges); 2 canned chipotle chiles in adobo sauce, finely chopped; 4 cloves garlic, finely grated (preferably on a Microplane); 1 tablespoon honey; 1 tablespoon kosher salt, divided; 1 large head cauliflower, cut into small florets (about 10 cups); 2 cups 1-in. pineapple chunks (8 oz.); 1 large white onion, thinly sliced; 1 avocado, halved; ¼ cup fresh lime juice (from 2 or 3 limes); ¼ cup chopped fresh chives; 8 corn tortillas, warmed; Chopped fresh cilantro, for serving