HEAT a 10-inch ovenproof nonstick skillet at 450° F for 5 minutes or until hot.
WHISK together first 7 ingredients in a large bowl until blended.
ADD butter to hot skillet, stirring to coat skillet; pour in batter.
BAKE at 450° F for 10 minutes. Reduce oven temperature to 350° F, bake 10 minutes.
REMOVE beef from pouches. Place in a microwave-safe dish. Microwave at HIGH 6 to 6 1/2 minutes; stir once. Stir in cheese and green onions. Microwave at HIGH 1 minute.
CUT pancake into wedges and spoon beef mixture over each slice. Serve immediately.
Servings: 6