Low Carb Meatball Burrito Bowls

Name: Low Carb Meatball Burrito Bowls
Ingredients: 1 lb lean ground beef (see note 1); 1 teaspoon worcestershire sauce; 1/2 teaspoon salt; 2 tablespoons low carb taco seasoning (see note 2); 1 egg; 1 tablespoon olive oil (or coconut oil); 3 cups riced cauliflower (see note 3); 1/2 teaspoon garlic powder; 1 lime (zested); 1 cup cherry tomatoes (quartered); 1 jalapeno (minced); 1/2 lime (juiced); 1/8 teaspoon salt; 1/2 cup cheese (shredded); 1/4 cup sour cream (see note 4); salsa (optional); avocado or guacamole (optional)