Make this recipe a recipe that people in that category can eat. categories: ['vegetarian'], 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.

Target recipe: combine 1/2 cup mayonnaise and next 3 ingredients in a saucepan. gradually add milk, and cook, stirring constantly, over medium-low heat 8 to 10 minutes or until thickened. remove from heat. add cheddar cheese and next 3 ingredients, stirring until cheese melts and is well blended. place half of potato slices evenly in a lightly greased 11- x 7-inch baking dish; pour half of cheese mixture over potatoes. repeat layers with remaining half of potato slices and cheese mixture. sprinkle evenly with parmesan cheese. bake, covered, at 350° for 1 hour. uncover and bake 30 more minutes or until potatoes are golden brown and fork tender.