Cook ground beef in skillet over medium heat. Drain. Cook bell pepper and onion until softened, about 5 minutes. Return ground beef to pan.
Add remaining ingredients except cheese and green onions. Mix well. Reduce heat to low and simmer for 30 minutes.
While sauce is simmering, cook fries according to package instructions. You want them crispy so they won’t get soggy underneath the sauce.
Turn oven to broil.
Spoon meat mixture over cooked french fries. Sprinkle with cheese. Broil just until cheese is melted. Sprinkle green onions on top. Serve with additional sriracha sauce, if desired. Makes 8 servings.