Make this recipe a recipe that people in that category can eat. categories: ['vegetarian'], recipe: in saucepan, melt butter over medium heat; cook onion and ham until onion is softened, about 5 minutes. add flour; cook, stirring, for 1 minute. gradually whisk in milk; cook, whisking, until thick enough to coat back of spoon, about 8 minutes. add mustard, salt, pepper and cayenne. stir in cheddar cheese just until melted. meanwhile, in large pot of boiling salted water, cook macaroni for about 8 minutes or until tender but firm. drain and return to pot. add sauce and stir to combine. pour into 8-inch (2 l) square glass baking dish. in small bowl, combine bread crumbs with parmesan cheese; sprinkle over macaroni mixture. broil until browned, about 3 minutes.

Target recipe: bring a large pot of water to boil; cook pasta until al dente. while pasta is cooking, in med saucepan, melt 2 t of the margarine. remove from heat; add flour and stir until blended. whisk in stock and milk, stirring over med heat until mixture comes to a boil and thickens. reduce heat to low. stir in cheeses and seasonings. continue stirring until cheese is melted. remove from heat and set aside. in a large skillet, melt remaining 1 t margarine. add remaining ingredients. cook vegetables, stirring constantly, for about 5 minutes, until tender/crisp. reduce heat to low. when noodles are done, drain well. toss with vegetables; stir in cheese sauce. garnish with scallion curls.