Heat coconut oil in a large pot over medium-high heat. Add ground beef, onion, and bell pepper; cook breaking up the beef until no pink remains. Drain if necessary.

Stir in diced tomatoes, tomato sauce, chicken broth, garlic powder, and salt and pepper. Bring to a boil; cover and lower to a simmer. Simmer for 20 minutes.

While the soup is simmer, grate your cauliflower (or process in a food processor) to create cauliflower rice.

Heat the coconut oil over medium-high heat. Add the grated cauliflower and season with salt and pepper. Cook, stirring frequently, for 3 - 5 minutes or until the cauliflower rice has softened.

To serve, spoon cauliflower rice into bowl and top with the soup. Stir together if desired.