Process first 5 ingredients in a blender 15 seconds or until smooth. Stir in cheese and jalapeo, and let stand 30 minutes. Lightly grease a 12-cup muffin pan with cooking spray; place in a jelly-roll pan, and heat in oven 2 minutes. Spoon batter into prepared muffin pan, filling halfway.
Bake 15 minutes. Reduce oven temperature to 375, and bake 8 to 12 minutes or until puffed and golden brown.