1 (8-ounce) carton fat-free sour cream |
1/4 cup minced fresh parsley |
1/4 cup prepared horseradish |
1 teaspoon white wine worcestershire sauce |
1/8 teaspoon pepper |
1 (2-pound) beef tenderloin |
cooking spray |
1/2 teaspoon salt-free lemon-herb seasoning (such as mrs. dash) |