Heat a medium pan to medium heat. Add a splash of olive oil then add the onion ans garlic. Saute for 10 minutes or until lightly browned. Set aside.
Heat a cast iron pan to medium high heat then add a splash of olive oil then the mushrooms. Cook mushrooms until browned then season with salt and pepper. Add the beef and saute for 2 to 3 minutes. Add the sauteed onions to the pan then add butter and brandy. Stir in the parsley, lemon zest and the sour cream. Simmer for 2 minutes. Adjust seasoning if needed. Serve with more sour cream if desired. Yum!
Recipe by The Gluten Free at https://www.theglutenfree.com/gluten-free-beef-stroganoff/