Preheat oven to 350 degrees Fahrenheit.
Lightly grease the bottom of a 9 inch pie dish with butter or cooking spray.
Place one tortilla on the bottom of the pie dish.
Place oil and ground beef in a skillet over medium heat and cook for 5-7 minutes until no longer pink.
Add onion, chili powder, salt and pepper and stir to combine. Let cook for another 2 minutes.
Add tomatoes, cauliflower rice and chicken broth and mix well.
Cook for 5 minutes. Add scallions and cilantro.
Pour beef mixture into pie dish.
Cover with remaining tortilla and press down.
Bake in preheated oven for 15-20 minutes.
Allow to cool and add toppings of your choice. Then enjoy!