HEAT a large skillet over medium heat. Add the ground beef, diced onion, minced garlic, salt and pepper. Cook for 5 minutes, breaking the beef up as it cooks.
ADD the garlic and mushrooms and cook for another 5 minutes. Cook until beef is browned and onions and mushrooms are tender.
WHISK the broth, starch, coconut aminos, and coconut cream in a large measuring cup or medium mixing bowl until smooth.
ADD broth mixture to the pan of cooked beef, stirring regularly until sauce thickens, about 4-5 minutes. Sauce will thicken more as it cools. Remove from heat and top with optional parsley, if using.
SERVE over mashed potatoes, mashed cauliflower, or cauliflower rice.
FREEZE leftover beef stroganoff in a sealed container for up to 1 month.