Make this recipe a recipe that people in that category can eat. categories: ['low_carb'], recipe: thinly slice potatoes, cover with cold water and set aside. in medium saucepan, melt butter. stir in flour until no lumps remain, add milk and whisk until combined. cook milk and flour mixture until thick enough to coat the back of a spoon. grease a 2 qt casserole dish. layer 1/3 sliced potatoes. 1/2 of onion. 1/3 white sauce. repeat layers, finishing up with potatoes and sauce. dot with butter. cover and bake 30 minutes at 350 degrees. uncover and back an additional 1 hour.

Target recipe: melt butter in large sauce pan over low heat; blend in flour, salt, and pepper. cook, stirring constantly, for about 1 minute. remove from heat gradually stir in milk. return to heat; cook until thickened and bubbly. fold in ham, onion, green pepper and cheese. pour over potatoes in a large bowl. stir gently then move into a buttered 13x9-inch baking dish; cover with foil. bake at 350 degrees for 30 minutes. uncover and continue to bake for 1 hour. let stand for 10 minutes before serving.