Brown beef and drain. Add garlic, cook and stir. Stir in 1 Tbsp flour, bouillion, and pepper. Cook 1 minute. Add soup, water and mushrooms. Mix well. Bring to a boil. Reduce heat and simmer 15 minutes. Combine sour cream with remaining 1 Tbsp flour and parsley. Stir into beef mixture and heat through (do not allow to boil). Serve over hot cooked noodles.