Directions

• Combine lime juice, 1 teaspoon salt, and 2 tablespoons olive oil in a shallow dish. Add the steak and marinade at room temperature for 10 minutes, turning once.
• Pat steak dry, then rub with black pepper.
• Put a large skillet over medium high heat and add a little olive oil. Add steak and cook, turning once, under desired doneness (6-10 minutes for medium rare).
• Transfer the steak to a cutting board, then let stand at least 5 minutes.
• While the steak is resting, add the onion and peppers to the still hot pan. Season with salt and pepper, and cook until tender.
• When onion mixture is ready, toss with vinegar and 1/2 teaspoon salt, and serve with thin, diagonally sliced pieces of steak.