01 -
Combine ground beef, almond flour, egg, garlic powder, onion powder, salt, and pepper in a large bowl. Mix thoroughly to evenly incorporate all ingredients.
02 -
Form the mixture into uniform meatballs. Heat a large skillet over medium heat and cook the meatballs, turning occasionally, until well browned on all sides and fully cooked through. Remove the meatballs from the skillet and set aside.
03 -
In the same skillet, melt butter over medium heat. Add sliced mushrooms and cook, stirring occasionally, until tender and lightly golden.
04 -
Pour beef broth into the skillet and bring to a gentle simmer. Stir in sour cream, heavy cream, and Dijon mustard. Continue cooking, stirring often, until the sauce thickens and becomes smooth.
05 -
Return the cooked meatballs to the skillet, coating them evenly with the mushroom sauce. Simmer for several minutes to blend flavors.
06 -
Transfer meatballs and sauce to serving plates. Garnish with freshly chopped parsley before serving.