Combine oil, orange juice, vinegar, mustard, honey, salt and mint. Place beef strips and onion rings in glass bowl; add 1/2 cup marinade, stirring lightly to coat. Cover bowl and refrigerate 2 to 3 hours. Refrigerate remaining dressing. Line serving platter with Romaine lettuce; place beef and onion rings in center. Arrange orange and avocado slices around beef strips. Drizzle remaining dressing over salad.
Cajun Country -- New Iberia, Louisiana