Make this recipe a recipe that people in that category can eat. categories: ['low_carb'], recipe: mix dry ingredients in a saucepan. whisk in milk. cook over medium heat, whisking constantly, until it thickens and bubbles. cook and stir 30 seconds more, then remove from the heat. whip in the margarine and mustard. add more milk or water if mixture is too thick. add hot, cooked macaroni, and mix well. enjoy!

Target recipe: cook shells in boiling water until barely al-dente. drain well. heat oven to 400 deg.f and grease a 13 x 9 inches baking dish. put about 1/3 of the shells in prepared dish. sprinkle with 1/4 tsp salt, pepper and 1/3 of the cheese. dot with 1/ tbsp butter. repeat layers twice more, ending with the remaining cheese. don't push down on the shells or it will make it too dense. pour milk over top. bake 45 minutes to 1 hour, depending on how crisp you like the top.