WW 6 POINTS - ROAST BEEF SANDWICHES WITH CARAMELIZED ONIONS

Steps:

• Heat large nonstick skillet over medium-high heat.
• Swirl in the oil, then add the onion.
• Cook, stirring occasionally, until softened.
• Reduce heat to low and cook until onion is golden brown, about 20 minutes.
• Divide and spread the mustard on 3 sliced of bread.
• Layer the beef and onions over the top.
• Cover each with the other slice of bread.
• 6 points per sandwich.