Cast-Iron Burger Cooking Light

• PATTIES
• 1 lb ground sirloin
• 1/2 teaspoon kosher salt
• HORSERADISH SPREAD
• 1 tablespoon canola mayonnaise
• 1 tablespoon Dijon mustard
• 1 tablespoon prepared horseradish
• 2 teaspoons ketchup
• RELISH
• 2 slices of applewood-smoked bacon, chopped
• 3 cups vertically sliced yellow onions
• 1 tablespoon finely chopped chives
• 1 teaspoon Worcestershire sauce
• 1/4 teaspoon fresh ground black pepper
• REMAINING INGREDIENTS
• 4 (1 1/2 ounce) hamburger buns or (1 1/2 ounce) kaiser rolls
• 4 slices tomatoes
• 1 cup shredded lettuce

1. To prepare the patties, divide beef into 4 portions, lightly shaping each into a 1/2-inch thick patty. Sprinkle evenly with salt. Cover and refrigerate 30 minutes.
2. To prepare horseradish spread, combine mayonnaise and next 3 incredients (through ketchup) in a small bowl. Set aside.
3. To prepare relish, cook bacon in a large nonstick skillet over medium-low heat until script. Remove bacon from pan with a slotted spoon. Add onion to drippings pan; cook 15 minutes or until golden brown. Combine bacon, onion mixture, chives, Worcestershire sauce, and pepper in a small bowl.
4. Heat a large cast-iron skillet over medium-high heat. Coat pan with cooking spray. Add patties; cook 2 minutes on each side or until desired degree of doneness. Spread 1 1/2 teaspoons horseradish spread on cut sides of each bun half. Top bottom half of each bun with 1 patty, 1/4 cut relish, 1 tomato slice, 1/4 cup lettuce, and top half of bun.

ground sirloin, kosher salt, horseradish, canola mayonnaise, mustard, horseradish, ketchup, bacon, onions, chives, worcestershire sauce, fresh ground black pepper, ingredients, buns, tomatoes, shredded lettuce

Taken from www.food.com/recipe/cast-iron-burger-cooking-light-385975 (may not work)