Pan-Roasted Steak and Onions
- 1. In a large non-aluminum baking dish, combine the oil, vinegar, Worcestershire sauce, mustard, and garlic. Add the steak; turn to coat. Cover; refrigerate for 30 minutes or overnight, turning once.
- 2. Coat a nonstick skillet with cooking spray. Place over medium-high heat. Sprinkle the steak with the pepper and salt. Brown for 2 minutes per side. Add 1/2 cup of the broth; cook, turning once, for 5 to 6 minutes per side (for medium-rare). Remove the steak from the skillet; cover the steak loosely to keep it warm. Reduce the heat to medium. Add the onion slices to the skillet and cook until golden brown, about 4 to 5 minutes per side. Add the remaining broth as needed to prevent the onions from sticking.
- Thinly slice the steak across the grain; serve with the onions.