Ingredient:

• 4 tablespoons olive oil, divided
• 3 tablespoons lime juice
• 4 garlic cloves, minced
• 4 beef top round steaks (4 ounces each), 1/4-in. thick
• 1 teaspoon salt
• 1/2 teaspoon pepper
• 2 medium onions, thinly sliced
• 1 tablespoon minced fresh cilantro
• 4 lime wedges