Make this recipe a recipe that people in that category can eat. categories: ['gluten_free'], recipe: in a saucepan, melt butter. add mushrooms and cook gently 2 minutes. add flour and stir into mushroom mixture. add cheese, mustard and worcestershire sauce. stir well and heat through gently 2 minutes or until mixture begins to melt. remove from heat and season to taste with pepper. preheat broiler. toast bread on one side only. spread cheese and mushroom mixture on untoasted sides. broil in preheated broiler 3-4 minutes or until melted and bubbling. cut slices in half and sprinkle liberally with parsley and paprika. garnish with parsley sprigs, if desired, and serve hot.

Target recipe: heat oven to 450°f place fish in a 9x13 dish; drizzle with dressing. bake 25 minutes; top with muxhrooms and cheese. bake 5 minutes or until cheese melts and fish flakes easily with fork. sprinkle with parsley. substitute: prepare using halibut or cod fillets.