The Ultimate Turkey Burger With Caramelized Onions & Blue Ch

• 1 tablespoon unsalted butter
• 1 large vidalia onion, thinly sliced
• 20 7/8 ounces ground turkey
• 1/2 cup part skim ricotta cheese
• 1 3/4 teaspoons Worcestershire sauce
• 1 3/4 teaspoons Dijon mustard
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• 1 tablespoon vegetable oil
• 1/4 cup crumbled blue cheese
• 2 tablespoons light mayonnaise
• 4 whole grain white hamburger buns
• 4 romaine lettuce leaves

1. Melt butter in a large skillet over medium-high heat. Add onion; cook for 15 minutes or until well browned; set aside.
2. In a large bowl, combine turkey, ricotta, worcestershire sauce, mustard, salt and pepper. Stir until well combined. Form into 4 equal-size patties and flatten.
3. Heat oil in a large nonstick skillet over medium heat. Cook burgers about 5 minutes per side, then partially cover, reduce heat to medium and cook another 5 minutes or until instant-read thermometer registers 160.
4. While burgers are cooking, stir together blue cheese and mayonnaise in a small bowl. Place burgers on buns and top each with some of the onions, 1 tablespoon blue cheese sauce and a lettuce leaf.

unsalted butter, vidalia onion, ground turkey, ricotta cheese, worcestershire sauce, mustard, salt, black pepper, vegetable oil, blue cheese, light mayonnaise, grain white hamburger

Taken from www.food.com/recipe/the-ultimate-turkey-burger-with-caramelized-onions-blue-ch-442439 (may not work)