On the water, fry the chopped onion, add the minced meat, potassium salt, thyme, grated carrots and stir until the meat gets brownish color. Stir and remove from cooker. In another pan on the bottom line up potato slices 3-4 mm thick, and fill the gaps between the rings with the chopped potatoes into cubes. Over potatoes pour the meat and put another layer of potatoes. In the pan in which the meat is fried, whisk 2 eggs and 1 egg white, add 200ml milk and water to the end and pour this mixture of potatoes and meat. Bake moussaka in the oven at 300 ° C until the surface appears brownish (if you prepare it just for you, you can make a smaller amount and put only one egg).