Ingredients

  • 1/2 cups Crumbled Blue Cheese
  • 1/4 cups Canola Oil Mayonnaise
  • 2 teaspoons Chopped Fresh Thyme, Divided
  • 1/4 teaspoons Tabasco Brand Hot Sauce
  • 1 pound Lean Ground Sirloin
  • 1 Tablespoon Soy Sauce
  • 1 Tablespoon Worcestershire Sauce
  • 1 Tablespoon Steak Sauce (used: A1)
  • 2 teaspoons Coarse Black Pepper, Divided
  • 18 teaspoons Kosher Salt
  • 1/2 teaspoons Extra Virgin Olive Oil
  • 4 slices Vidalia Or Other Sweet Onion (about 1/4" Thick)
  • 16 ounces, weight Sliced Baby Bella Mushrooms, Optional
  • Cooking Spray
  • 2 teaspoons Sherry Vinegar
  • 4 Whole Wheat Hamburger Buns, Toasted
  • Optional Burger Toppings: Lettuce, Sliced Tomatoes, Etc

Method

  • Preheat grill to medium-high heat.
  • Combine 1/2 cup blue cheese, mayonnaise, 1 teaspoon thyme, and Tabasco sauce in a small bowl; stir well and set aside.
  • In a medium bowl, combine ground beef, soy sauce, Worcestershire sauce, steak sauce, and 1 teaspoon pepper.
  • Mix well.
  • Divide beef into 4 equal portions, shaping each portion into a 1/2-inch-thick patty.
  • Sprinkle beef evenly with 1 teaspoon black pepper and salt.
  • Brush oil evenly over both sides of onion slices; sprinkle lightly with salt and pepper.
  • Place the patties and onions on grill rack that has been coated with cooking spray; put the cover on the grill.
  • Grill meat patties for 4 to 6 minutes per side and grill onions for 3 to 4 minutes on each side.
  • Meanwhile, in a grill pan sprayed with cooking spray, quickly saute mushrooms over medium heat until most of the liquid cooks out of the mushrooms.
  • Set patties aside; keep them warm.
  • Place the onion slices and sauteed mushrooms in a zip-top plastic bag with vinegar and the remaining thyme; seal.
  • Let stand 5 minutes.
  • Spread cut sides of buns evenly with mayonnaise mixture.
  • Arrange lettuce and tomato on bottom half of each bun; top with 1 patty, 1/4 of onion and mushroom mixture, and bun top.