Peel the potatoes and wash them. Cut them into cubes (like for moussaka). Take the mushrooms, wash them and cut them into large cubes also. Pickles - cut into small cubes. Grate cheese in large pieces and add it to other products. Put the butter in a tall glass, suitable for the microwave. Add it to the 2 bouillon cubes - beef and vegetable. Put in the microwave for about 30 seconds, until melted the butter. Stir to allow the cubes to dissolve. Add milk and re-insert in the microwave. This time, leave only 15-ish seconds. Pour over vegetables. Add spices. Stir and bake at 200 C. It is advisable to use glass tray with a lid. So you can watch when the dish is ready. If you do not use aluminum foil, to turn ordinary tray - bake with fthe oil for about 30 minutes, then remove fthe oil and leave to doizpeche for about 5-10 minutes.