Boil buckwheat groats together with a bay leaf in twice the amount of water for around 15 minutes.
While buckwheat is cooking prepare all the vegetables: chop peppers, red onion and tomatoes and add them to a big bowl.
Grate a small carrot and add it to the rest of the veggies. Mix everything together.
Once the buckwheat is cooked spread it onto a large plate to cool down.
While buckwheat is cooling down squeeze the lemon and slice the pickled mushrooms. Get the rocket ready as well.
Add cooled down buckwheat to the bowl with vegetables, season it with salt and pepper and add the lemon juice together with extra virgin olive oil. Mix everything together and taste to see whether you need to add any more olive oil, lemon juice or salt.
To serve, place the salad onto a plate, add a handful of rocket and sliced pickled mushrooms on top.