Roast Beef Sandwiches With Caramelized Onion - cooking recipe

Ingredients

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

Preparation

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