In a pan, heat 1 teaspoon olive oil. Brown ground beef, until almost entirely cooked -about 10 minutes. Stir in spices + cook for additional 10 minutes.
While ground beef is cooking, in a separate pan - heat remaining olive oil. Stir in cauliflower rice + sauté over low heat. Add in lime juice, lime zest + cilantro. Cook for 5 minutes. Set aside.
Once cauliflower rice + beef have cooked, assemble taco bowls with toppings.