Flank Steak Sandwiches With Onions and Blue Cheese Recipe

Directions:

1. Place the steak in a large baking dish; pour dressing over, marinate 20 minutes.
2. Heat a broiler or grill, broil or grill steak, turning once, until browned on the outside but still pink in the middle, about 10 minutes; let rest on a cutting board 5 minutes.
3. Meanwhile, heat oil in a skillet over medium-low heat; add onions, cook, stirring occasionally, until very browned and soft, about 15 minutes; season with salt and pepper.
4. Cut steak across the grain into very thin slices; place on roll bottoms; top with cooked onions, blue cheese and roll tops.