Chipotle Chicken Burrito Bowl with Cauliflower Rice

Name: Chipotle Chicken Burrito Bowl with Cauliflower Rice
Ingredients: 4 cups cauliflower florets; 3 tablespoons extra-virgin olive oil, divided; ½ teaspoon salt, divided; 1 pound skinless, boneless chicken breasts; 1 tablespoon finely chopped chipotle peppers in adobo sauce; ½ teaspoon garlic powder; ½ teaspoon ground cumin; 2 cups shredded romaine lettuce; 1 cup canned pinto beans, rinsed; 1 ripe avocado, diced; ¼ cup pico de gallo or fresh salsa; ¼ cup shredded Cheddar or Monterey Jack cheese; Lime wedges for serving