Ingredients
1/2 cup reduced-fat sour cream1 tablespoon snipped fresh dill or 1 teaspoon dill weed1 tablespoon finely chopped onion1 tablespoon sweet pickle relish2 teaspoons prepared horseradishBURGERS:3/4 cup chopped fresh mushrooms1/4 cup shredded carrot1/4 cup finely chopped onion2 tablespoons minced fresh parsley1 tablespoon Worcestershire sauce1/2 teaspoon salt1/4 teaspoon hot pepper sauce1/8 teaspoon pepper1-1/4 pounds lean ground beef (90% lean)6 whole wheat hamburger buns, split6 lettuce leaves12 tomato slices
Preparation
In a small bowl, combine the sour cream, dill, onion, pickle relish and horseradish; cover and refrigerate. In another bowl, combine the first eight burger ingredients. Crumble beef over mixture and mix well. Shape into six 1/2-in.-thick patties.
Grill patties, covered, over medium-hot heat for 3-4 minutes on each side or until meat is no longer pink. Serve on buns with lettuce, tomato and horseradish sauce.