Bring a large pot of lightly salted water to a boil. Cook noodles according to package directions, drain and set aside. If noodles are done more than a few minutes before your stroganoff is ready, you can toss them with 2 tsp. olive oil to prevent them from sticking together.
Meanwhile, heat olive oil in a 12″ skillet over medium-high heat. Add ground meat, and brown and crumble. About halfway through cooking the meat, stir in soy sauce, worcestershire sauce, and oregano, and mushrooms. Continue cooking until meat is cooked through.
Sprinkle flour over the meat mixture, and stir until meat and mushroom are well coated. Slowly stir in chicken broth and then milk, stirring constantly, until smooth. Reduce heat to medium, and bring to a simmer. Stir in yogurt, and return to a simmer. If sauce is thicker than you would like, stir in up to ½ c. more chicken broth to your desired consistency. Cook 2-3 minutes longer before serving.
Taste stroganoff, and add salt and pepper to taste. Serve over cooked egg noodles.
This is even better the second day, so it’s great for lunch leftovers!