Directions
1. Combine oregano, sea salt, pepper and Mrs. Dash in a small bowl. Rub evenly over flank steak. Let stand 30 minutes.
2. Combine avocado, wasabi sauce, lime juice and powdered garlic in a food processor; process until smooth. Stir in mayonnaise until well blended.
3. Prepare grill.
4. Coat grill with cooking spray. Place steak on grill.
5. Cover and grill 8 to 10 minutes or until desired doneness, turning occasionally.
6. Remove steak from grill. Let stand 5 minutes. Cut steak diagonally across the grain into thin slices.
7. Place steak slices on top of crostini toast slices, 1 per toast. Top each with 2 teaspoons avocado spread.