Pre-heat a waffle maker to medium-low heat.
In a medium size mixing bowl, mix together the biscuit mix, buttermilk, cheese, chives and salt and pepper, to taste. Spray the waffle maker with nonstick cooking spray and distribute the mixture evenly in the waffle iron. Cook for 8-10 minutes, or until the biscuits are slightly brown.
For the milk gravy: Melt the butter in a saucepot over medium heat. Whisk in the flour, then whisk in the milk. Season the gravy with salt, pepper and a little freshly grated nutmeg. Simmer over low bubble to coat the back of a spoon, adjust seasoning in sauce.
Top the cooked biscuit with milk gravy and top with browned chicken sausage, if desired.