In a large skillet, heat 1 tablespoon ghee over medium-high heat. Ghee should be hot but not smoking. Add ground beef, season with salt and pepper and brown, breaking into crumbles until cooked through (5 to 6 minutes).
Add mushrooms, onions, garlic and dill (reserve a quarter of the dill for garnish). Cook, stirring occasionally until mushrooms and onions begin to soften (5 to 6 minutes). Stir in tapioca starch until the beef and vegetables are coated (the tapioca starch should no longer be visible).
Stir in beef broth and mustard, bring to a simmer, reduce heat to medium and cook, stirring occasionally, until liquid is reduced by about half (8 to 10 minutes).
Add coconut cream to skillet, gently toss until smooth and well-combined with beef and vegetables and simmer for another 2 to 3 minutes. Season to taste with salt and pepper.