Cauliflower Tacos with Spicy Sriracha Black Beans

Name: Cauliflower Tacos with Spicy Sriracha Black Beans
Ingredients: 1 tablespoon olive oil; 1 small head cauliflower, finely chopped; 1 tablespoon chili powder; 1/2 teaspoon garlic salt; 1/2 teaspoon dried oregano; 1/2 cup salsa; 1/2 medium yellow onion, diced; One 15-ounce can black beans (do not drain); 1 to 2 teaspoons sriracha hot sauce; Kosher salt and freshly cracked black pepper; Warm flour tortillas, for serving; Guacamole, fresh cilantro, thinly sliced scallions, shredded cabbage or bagged coleslaw mix and sour cream, for topping