Cook the ground beef in a large saucepan until brown. Drain the excess fat and set it aside.
Return the saucepan to medium-high heat. Cook the onions until translucent. Add the garlic.
Return ground beef to the pan with onions and garlic. Add the paprika, salt and pepper.
In a large saucepan, combine the heavy cream, cheddar cheese and cream cheese.
Cook over medium heat until melted and come together.
Add the mustard (and maybe a little extra!) and some pepper
At the same time, cook the riced cauliflower bags and mashed cauliflower (**See note below regarding seasoning mashed cauliflower)
Add the beef and riced cauliflower to the cheese sauce and mix to combine.
Pour the mixture into a large casserole dish.
Top with mashed cauliflower (or mashed potatoes if non-keto!) and sprinkle with cheddar cheese.
Bake in the oven for 15-20 minutes, or until the top is golden brown.
Let cool and enjoy!
Notes
For the mashed cauliflower, I use the “Sour Cream & Onion” flavor, so I do not season it. However, if you’re using plain mashed cauliflower, I would recommend adding some salt and pepper to the mashed cauliflower for additional flavor.