In a large bowl, dissolve yeast from hot roll mix in warm water. Add the egg, butter, cheese and poppy seeds. Add flour from mix; blend well. Press into a greased 15x10x1-in. baking pan. Cover and let rise in a warm place until doubled, about 45 minutes. Combine topping ingredients; spread over dough.
Bake at 400° for 20-25 minutes or until golden brown. Cut into squares; serve warm.