Make this recipe a recipe that people in that category can eat. categories: ['low_fat'], recipe: preheat oven to 350 degrees f (180 c). butter a 1 1/2 quart casserole. cover the bottom of the casserole with a single layer of potatoes and onion. sprinkle generously with salt, pepper, flour and a few dots of butter. repeat until all of the potato slices and onion are used. pour milk over the potato slices until the top is almost covered. dot with the remaining butter. bake for 1 hour or until the potatoes are soft.

Target recipe: to make sauce, cook onion in butter till tender but not brown. stir in flour, salt and pepper. add milk. cook and stir till thickened and bubbly. cook and stir 1 to 2 minutes more. remove from heat. place half of the sliced potatoes in a greased 2 quart casserole. cover with half of the sauce. repeat layers. bake, covered, in a 350* oven 45 minutes, stirring once. uncover, bake 30 to 45 minutes more or until potatoes are done.