Make bowties and set aside

Heat the olive oil in a heavy 12-inch skillet over moderate heat for 1 minute

Add the onions and cook, stirring frequently, until they start to brown?about 10 minutes

Meanwhile, cook the bowties al dente

Rinse with cold water, drain well, and set aside

Add the mushrooms to the skillet and cook, stirring occasionally, for 5 minutes or until the mushrooms are lightly browned and their juices have evaporated

In a small bowl, combine the kasha and egg, stirring well to coat each grain

Push the mushroom-onion mixture to one side of the skillet, add the kasha-egg mixture to the other, raise the heat to high, and stir the kasha until the grains have separated, about 4 minutes

Add the salt, pepper, and hot water and stir to mix the contents of the skillet

Cover, reduce the heat to moderately low, and cook, stirring occasionally, for 15 minutes or until the kasha is tender

Stir in the cooked bowties and bring to serving temperature.