Preheat the oven to 450F. Spread the French fries onto a sheet pan and bake according to their packaged directions. Add an extra 10 minutes to the suggested time to ensure the fries are super crispy.
While the fries are cooking, go ahead and bake or air fry the chicken strips according to their packaged directions. Once cooked, chop into smaller bite-sized pieces.
Meanwhile, mix all ingredients for the buffalo sauce in a saucepan over medium-high heat. Once bubbly, set aside.
Once crispy, remove the fries from the oven and top with the chicken, provolone cheese slices, sprinkle with mozzarella cheese and French fried onions. Cook for 8 - 10 minutes until the French fried onions are golden and cheese is melted.
Drizzle the cheesy chicken fries with desired amount of buffalo sauce and ranch. Top with green onions and serve immediately.