Flank Steak with Horseradish Cream

Ingredients

• 2 tablespoons mayonnaise fat-free
• 1 pound flank steak 
• 1.5 tablespoons horseradish prepared
• 1 teaspoon penzey's southwest seasoning dried italian
• 0.3 cup olive oil vinaigrette reduced-fat
• 1 small onion quartered
• 0.5 cup cup heavy whipping cream fat-free sour

Equipment

• food processor
• grill
• ziploc bags

Directions

1. Combine first 3 ingredients in a food processor; process until onion is minced.
2. Place steak in a large heavy-duty zip-top plastic bag.
3. Pour onion mixture over steak; seal bag, and shake until steak is well coated. Marinate in refrigerator 8 hours, turning bag occasionally.
4. Prepare grill.
5. Remove steak from marinade; discard marinade.
6. Place steak on grill rack coated with cooking spray. Cover and grill 10 to 12 minutes or to desired degree of doneness.
7. Let steak stand 5 minutes.
8. Combine sour cream, mayonnaise, and horseradish, stirring well.
9. Cut steak diagonally across grain into thin slices.
10. Garnish with oregano sprigs, if desired.
11. Serve with horseradish mixture.
12. carbo rating: 8