Heat a large, oven-safe pan on medium high heat and cook the beef until no longer pink. Add in 2 tsp of the taco seasoning and cook another minute. Transfer to a bowl. Do not wipe out the pan.
Add the cauliflower rice and the pepper directly to the pan and cook until lightly browned, about 5 minutes. Add the remaining 1 tsp of taco seasoning and cook another minute
Add the beef back into the pan and stir to combine.
Add all the remaining ingredients (only 1/2 cup of the cheddar cheese), except the cilantro, and stir until the cream cheese melts and everything is combined.
Bring a boil and boil for 3-4 minutes, stirring frequently, just until the mixture thickens.
Remove from heat and sprinkle on the cheese. Bake until bubbly, about 15 mins.