Roast Beef Sandwiches With Caramelized Onion

If you can't find Vidalia onions, substitute 2 yellow onions and add 1 teaspoon of sugar.

• Ready In: 30 mins
• Serves: 3

Ingredients

• 1  teaspoon olive oil
• 1  vidalia onion, cut into strips
• 6  teaspoons  honey mustard
• 6  slices  rye bread
• 6  ounces roast beef

Directions

1. Cook the onion in the oil in a large skillet over medium heat for about 8 minutes, until it's soft, stirring occasionally.
2. Reduce the heat to low and cook until the onion is golden brown, about 20 minutes more.
3. Spread 1/3 of the mustard on 3 slices of bread. Add the onion mixture and beef.