Lemon-Garlic Roast with Herbed Oregano-Horseradish Sauce

Ingredients

• 1 beef Strip Roast (3 to 4 pounds)
• 2 tablespoons grated lemon peel
• 1 tablespoon freshly ground black pepper
• 3 teaspoons minced garlic
• 1 cup regular or reduced-fat dairy sour cream
• 1/4 cup horseradish
• 1 tablespoon fresh lemon juice
• 2 teaspoons finely chopped fresh oregano or chives
• 1/4 teaspoon salt