This turned out good. In a small frying pan melt a small amount of butter. Cut half of a small onion into a fine dice. Thinly slice 3 or 4 mushrooms. Cook til the onions are clear. Add 3 or 4 small yellow squash sliced thin. Put in 1/4 cup of water. Put on a lid and let cook til done. Stir to mix flavors.