I would say Bo Ne is a Vietnamese version of "English breakfast" : fat and yummy. It's normally served on a scorching hot steel pan/dish. Egg, thin-cut beef, onion and a lot of butter or other fat and baguette - absolutely perfect breakfast.
Mix all marinade ingredients. Add beef. Mix well to cover the meat with marinade and put to a fridge overnight.
Fry first sliced mushrooms, set aside. On the same pan caramelize the onion and set aside.
Next on the same pan add more butter(or oil) fry beef for a few seconds. Add egg and fry to the desired doneness.
Add mushrooms, onion and pate. Decorate with spring onions. Serve sizzling hot with a fresh baguette on the side.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.