Ingredients and Preparation
- Combine sour cream, mustard, and dill in a medium bowl. Remove 2 tablespoons of the mustard-dill mixture and reserve for later. Gently combine remaining mustard-dill mixture and beef, and form into 2 (approximately ½-inch thick) burger patties.
- Prepare indoor or outdoor grill and coat with cooking spray. Grill burgers 6-8 minutes per side, until cooked through. Arrange mustard-dill sauce, burgers, tomato slices, and lettuce on burger buns and serve.