Ranch Burgers

Ingredients

• 1 pound Ground Beef (93% lean or leaner)
• 1/4 cup soft bread crumbs
• 1 egg white
• 1 teaspoon seasoned salt
• 1 medium red onion, cut crosswise into 1/2-inch thick slices
• 1 tablespoon vegetable oil, divided
• 4 whole wheat hamburger buns, split, toasted
• Romaine lettuce, tomato slices
• 1/4 cup reduced-fat creamy ranch dressing