2
Spray 8 inch square (2 quart) microwavable dish with cooking spray. In medium bowl, mix refried beans, green chilies, and crumbled bacon. Spread mixture evenly in sprayed dish. Sprinkle frozen corn and black beans evenly over refried bean mixture. Pour salsa over top. Sprinkle cheese over salsa. Crumble remaining 2 slices of bacon and sprinkle over the cheese.
Microwave on High for 10-15 minutes or until cheese is bubbly and mixture is thoroughly heated. Garnish with spoonfuls of sour cream, if desired. Serve warm with tortilla chips.