Hearty TexMex Inspired Chicken Casserole (Low-Carb)

Name: Hearty TexMex Inspired Chicken Casserole (Low-Carb)
Cuisine: American, TexMex
Ingredients: 1 Tbsp avocado oil, olive oil; 1 large red bell pepper, diced; 1 large onion, diced; 6 cups riced cauliflower; 1 x 15oz can crushed tomatoes with juice; 1 cup chicken bone broth; 1 Tbsp ground cumin; 2 tsps chili powder; 2 tsps garlic powder; 2 tsps onion powder; sea salt and ground black pepper, to taste; 4 cups of cooked, shredded chicken; 1/2 cup freshly shredded cheese cheddar or Monterey jack; sliced jalapeño, sliced chili peppers, fresh cilantro, fresh basil, pickled red onion, guacamole, or sliced avocado