Heat oven to 425°F. Lightly grease cookie sheet with shortening or cooking spray.
In large bowl, stir Bisquick mix, cheese and chives. In small bowl, beat egg and yogurt; add to dry ingredients, stirring just until moistened.
On lightly floured surface, knead dough lightly with floured hands 4 to 5 times. Pat dough into 9-inch round on cookie sheet. Using knife sprayed with cooking spray, cut dough into 12 wedges, but do not separate wedges.
Bake 12 minutes or until lightly golden. Serve warm.