1. To make the beef cauliflower rice casserole: In a cast-iron skillet, melt butter, add ground beef and cook over medium-high heat until cooked through, breaking up the meat with a wooden spoon. Stir the minced onion into the meat and saute for one minute, until fragrant.

2. Steam the riced cauliflower in the microwave for 5 minutes, with 1/2 cup water, covered, in a microwave-safe bowl.

3. Add cream cheese and stir until melted then add beef broth, heavy whipping cream, garlic powder, tomato paste, and salt/pepper. Add cauliflower rice to the skillet and stir well to combine then cook on medium-low heat for 5-7 minutes until extra liquid is absorbed. If the mixture gets too thick to your taste, add a little more beef broth.

4. Simmer on low, covered for 5 minutes. Adjust seasoning with salt and pepper if needed.

5. Sprinkle shredded cheese on top of beef and cauliflower, cover, and simmer until cheese is melted. At this time, you can serve the ground beef casserole right away, or crisp it under the broiler for more crunch. Garnish with fresh chopped parsley and chili pepper flakes and serve your ground beef and cauliflower rice casserole immediately. Enjoy!