Meat well to repel (so that its area is approximately 2 times increased). Season with a little salt on the one hand, which in consequence will be internal. My advice: to beat the meat, put it in a regular plastic bag or wrap in cling film, this will not allow him to fall apart while hitting.

Onion cut into half rings.

Cucumbers cut lengthwise into thin slices. It may take less or more cucumber, depending on how much to put in the stuffing. PS a Cucumber on the right is clearly a boy :)))

Then the cooked meat is carefully lubricated with mustard (on the one hand, it took me about 1 tsp per piece of meat) on top of the lay 2 slices of bacon, cucumbers and onions.

Now roll all the rolls and fasten. I had a special metal skewers, you can also use toothpicks or just link the thread.

Roulades and fry in a small amount of oil on all sides until Golden brown.

Meanwhile, chop the bell peppers and onions.

Take out the roulades and in the same pan fry the onion and pepper. add to the same mustard (2 tablespoons no slides).

And now we are doing something we usually avoid:) the Mustard should burn to the bottom, i.e., fry until brown crust. I have some puny crust came out because I was in a hurry, do not have time to time. I think that would be possible even to fry:) Then I add a cucumber pickle (if vinegar is strong, it is better to take less and if they add more), a good stir, this crust was dissolved. Then add water (I added about 300 ml, but again I advise you to try the taste, that was not clear acetic notes), tomato paste. Sprinkle with salt, add Bay leaf.

Put the roulades in the sauce, cover with a lid and on low heat simmer for at least 30 minutes, preferably an hour. After this time put the roulades. With a slotted spoon take out the pepper (can be the whole and only part of it), grind them in a blender and send it back to the sauce, add the cream, simmer another minute. If desired, add a little starch to thicken the sauce.

The finished roulades very good with potatoes or cabbage. Awesome sauce, I was ready with a spoon there :))