Beef and Vegetable Udon

My first attempt at japanese cuisine. I marinated the beef in rice wine vinegar, soy suace, garlic, crushed red pepper, unagi sauce, and tangerine juice. I boiled the udon and I cooked the beef and veggies (mushrooms, carrots, seaweed, and snow peas) in vegetable broth. Finally, everything was tossed into the same pan to have the flavors cook together and I added more soy and unagi sauce to taste. My friend, who's been to japan, said this tasted authentic.

Done