This recipe contains relatively few ingredients, however the calorie content is quite high. The largest calorie contributors is the cheddar cheese and the mayonnaise. If you don't have bisquick on hand, you could certainly replace it with flour and some baking powder.
Even if this recipe makes 60 servings, it is likely that most people eat more than one serving, and the calorie and price per serving would thereby increase.
Cost Per Serving:
1 (1-pound) package ground sausage
3 cups baking mix (recommended: Bisquick)
4 cups grated sharp Cheddar
1/8 tablespoon pepper
1 cup mayonnaise
1 tablespoon mustard