Cook your french fries according to package directions. I cooked mine in the air fryer - 370 degrees for 14-17 minutes.
In a skillet, brown sausage over medium heat. Once cooked through, remove to bowl.
Add butter to skillet and melt over medium heat. Whisk in flour and cook for 3 minutes, stirring often.
Pour in broth. Whisk constantly to combine until smooth. Bring to a boil, stirring occasionally,
Mix cornstarch with 3-4 tablespoons of water in small bowl. Pour into gravy mixture, whisking constantly. Simmer for about 5 minutes, or until sauce thickens. Add garlic salt and pepper and stir.
Stir in sausage.
Divide french fries evenly between plates. Pour gravy over top. Top evenly with cheese curds and let melt for about 3-5 minutes before eating.