Canadian Style Seafood Casserole
["2 c. chopped onion", "3 c. chopped celery", "3 Tbsp. butter", "1 tsp. salt", "1/4 tsp. pepper", "5 c. milk or half and half", "1/2 c. butter", "3/4 c. all-purpose flour", "1 lb. Velveeta cheese", "1 lb. lobster meat", "1 lb. cooked shrimp", "1 lb. crab meat"]
["Saute onion and celery in 3 tablespoons butter; add salt and pepper.", "Bring milk to a boil and mix in 1/2 cup butter and flour; add celery and onion, then cheese.", "Cook until cheese is melted and sauce has thickened.", "Add seafood; place in one large or several individual casseroles.", "Heat until bubbling in 350\u00b0 oven.", "Serve over rice."]
["onion", "celery", "butter", "salt", "pepper", "milk", "butter", "all-purpose", "Velveeta cheese", "lobster", "shrimp", "crab meat"]