Slice one medium yellow squash and one medium zucchini (Will be about 1 1/2 cups of each).
Place squash, zucchini, butter and water into a 12-inch sauce pan with lid or a large pot with lid on medium heat and allow to steam. Stir every 5-10 minutes. (NOTE: Margarine may be substituted for butter to reduce fat.).
Allow to steam until sliced squash and zucchini is soft. Salt to taste.
Other spices, like pepper, chilli powder, etc. may be added for extra flavor.