Over medium heat, melt 2 tablespoons cooking fat in a skillet that has a lid. Add onions and cook until soft, about 5 minutes, stirring constantly.
Add 2 more tablespoons cooking fat, mushrooms, and garlic and cook until mushrooms have released some of their water, about 5 more minutes, stirring constantly.
Add ground beef and ½ teaspoon salt. Cook until ground beef is no longer pink, about 5 more minutes, stirring constantly.
Add bone broth to skillet and bring to strong simmer.
Add noodles and cover skillet. Allow to cook undisturbed for 6 minutes.
Check consistency of noodles. If they are not as soft as you would like, replace cover and cook for another 2-3 minutes.
Stir in coconut cream and lemon juice.
Remove from heat and sprinkle with dill before serving.
