1. Prepare waffle fries according to package directions. Shred beef pot roast with two forks.
2. Meanwhile, combine beef and barbecue sauce in a medium saucepan. Heat beef mixture over medium heat 8 to 10 minutes or until beef is heated through, stirring occasionally.
3. Reduce oven temperature to 350°F. Top waffle fries with beef mixture, beans and cheese. Bake in 350°F oven 5 to 7 minutes or until mixture is heated through and cheese is melted.
4. Top mixture with sour cream, if desired. Sprinkle with green onions.
Test Kitchen Tips Waffle fries may be transferred to an oven-safe baking dish. Continue as directed in step 3.