- Preheat oven to 475 F.  
- Cut sweet potatoes into 1/2 inch thick fries, then immerse in cold water to get rid of starch. Dry fries with clean towel and place in large bowl. 
- Toss fries with olive oil, salt, pepper and cayenne pepper then transfer to parchment-lined baking sheets (you will probably need one sheet per potato). Roast in the oven on the middle oven rack for 15 minutes, then flip and cook for another 12-15 minutes. 
- Meanwhile, while fries are cooking, make your gravy. In medium saucepan on med-high heat, add butter. Add mushrooms and onion to pan, sautéing for about 6-7 min, stirring often. Add garlic and flour, stirring well, then add vegetable broth and red wine, bringing mixture to a boil. Simmer for 10-15 min. For a creamy and smooth consistency, blend gravy using an immersion blender. 
- Fries should be finished around this time, so pull them out of the oven and transfer them to a pasta bowl or plate. Sprinkle with cheese curds, then ladle gravy overtop. Garnish with green onions, then serve and enjoy!