1. Separate rolls, then pull each apart slightly at the fold.
2. Cut each slice of cheese in half lengthwise, then in half crosswise; cut each piece into 2 small triangles. Tuck 2 triangles, one on top of the other, in each roll; press edges together. Place rolls on a cookie sheet.
3. Heat in slow oven (325°) 10 minutes, or until cheese starts to melt.