Home » Recipes » Low Calorie Potato, Onion, And Garlic Gratin Suggestions? Low Calorie Potato, Onion, And Garlic Gratin - Recipe Cost Ingredients Per Serving Qty Common Price Price per Serving 4 lrg baking potatoes, baked scooped out and mashed 2/3 potatoes $0.50 per pound $0.27 2 lrg garlic heads roasted 1/3 garlic cloves $4.00 per pound $0.01 2 lrg onions baked salt and pepper to taste 1/3 onions $0.79 per pound $0.09 2 Tbsp. buttermilk 1 teaspoon $3.09 per quart $0.02 4 Tbsp. parmesan grated 2 teaspoons n/a 1/4 c. skim lowfat milk 2 teaspoons $3.69 per 1/2 gallons $0.02 Total per Serving $0.40 Total Recipe $2.41 Please Log In or Sign Up to edit Recipe Cost info Email Recipe Cost Send To Message (if any) or Close