I didn't buy fresh sirloin beef, only meat for steak, which was also good. The master helped me cut three slices and took them home.
The beef needs to be marinated for 40 minutes, and the mashed potatoes also needs to be steamed for 40 minutes. Then marinate and steam before drying the rest. As a result, the beef was marinated for more than an hour and it was not finished yet. However, they say that the longer the beef is marinated, the better. Hehe...
Beef and vegetable rolls
By CasandraRyan
Recipe Recommendations
Steps for Beef and vegetable rolls

1
How to practice beef rolls: First add beef to 1 teaspoon of red wine, marinate for 40 minutes.
2
Wash the asparagus, the ingredients needed for beef rolls, and cut them into sections, wash the carrot and cut them into strips, and wash the red pepper and cut them into strips.
3
Stir fry the chopped vegetables together.
4
Then roll the marinated beef slices on the outside of the mixed vegetables (leave some mixed vegetables strips).
5
Heat the pan with oil and fry the beef rolls over high heat.
6
Pan-fry until the surface is golden brown and remove from the pan.
7
Practice of mashed potatoes: Wash the potatoes and steam them for 40 minutes. After cooling slightly, peel the potatoes and put them into a food bag, add 50g of salted butter, press and stir well.
8
How to make black pepper juice: Heat the butter in the pan.
9
Add shredded onions and shredded black pepper.
10
Add tomato sauce and stir fry until fragrant, then add 1 spoonful of flour.
11
Add clear soup and red wine until thick, add salt and sugar to make black pepper juice.
12
Stacking: Arrange the mashed potatoes, mixed vegetable strips (left behind) and beef rolls in order, sprinkle with black pepper sauce, and add shredded yellow pepper for decoration.Beef and vegetable rolls Make Tips
To make mashed potatoes, you can also add cream, spices, etc.