Sizzling Steak and Potato Salad

Ingredients

• 2 beef Sirloin Tip Center Steaks, cut 1 inch thick (about 8 ounces each)
• 1 cup reduced-fat salad dressing or vinaigrette (such as non-creamy Caesar dressing, balsamic or red wine vinaigrette), divided
• 2 large russet or baking potatoes, cut lengthwise into eighths
• 2 medium zucchini and/or yellow summer squash, cut lengthwise in half
• 6 cups chopped Romaine lettuce