Season and Brown Beef: Season the beef tips with salt and pepper. In a large skillet, heat the oil over medium-high heat. Add the beef tips to the skillet and sear them on all sides until browned.
Sauté Onion/Garlic Move the beef tips over to one side of the skillet. On the other side, add the finely chopped onions and minced garlic to the skillet. Sauté until the onions are translucent and the garlic is fragrant, about 30-40 seconds.
Make The Gravy Add the ghee and beef broth to the skillet along with the cornstarch/tapioca slurry, stirring constantly to avoid lumps. For Keto, sub 1/2 tsp xanthan gum and sprinkle it right into the beef broth and whisk until it thickens. Optional: Add a splash of Worcestershire sauce or coconut aminos for additional flavor.
Simmer: Bring the mixture to a simmer, then reduce the heat to low. Let it simmer uncovered until the beef is tender, and the gravy has thickened to your liking. This might take around 30 minutes. The longer it simmers, the more tender the steak will be. Taste and adjust the seasoning with salt and pepper as needed.
Prepare Cauliflower: If using frozen bags, cook according to the package and drain any excess water. If using real heads of cauliflower, place the cauliflower florets in a steamer basket over boiling water. Steam until the cauliflower is fork-tender, about 10-15 minutes. Drain any excess water from the steamed cauliflower and pat it dry with a paper towel. This helps prevent the mash from becoming too watery.
Make Cauliflower Mash: Add the cauliflower to a food processor along with garlic powder, onion powder, chives, ghee, coconut milk, dairy free sour cream and salt/pepper. Blend together until smooth and top with fresh chives. If the mash is too thick, you can add more coconut milk, one tablespoon at a time, until you reach the desired consistency.
Serve: Once the beef is tender and the gravy has reached the desired consistency, serve the beef tips and gravy over the mashed cauliflower and garnished with fresh herbs, such as parsley.