RECIPE FOR TUNA CASSEROLE RECIPES

Steps:

• Put oven rack in middle position and preheat oven to 375°F. Butter a shallow 2-quart baking dish.
• Cook onion in 1 1/2 tablespoons butter with a pinch of salt in a 12-inch heavy skillet over moderately low heat, covered, stirring occasionally, until softened, about 5 minutes. Increase heat to moderately high and add mushrooms, then sauté, stirring occasionally, until mushrooms begin to give off liquid, about 2 minutes. Add soy sauce and continue to sauté mushrooms, stirring, until liquid mushrooms give off is evaporated. Add Sherry and boil, stirring occasionally, until evaporated. Remove from heat.
• Melt remaining 3 tablespoons butter in a 2- to 3-quart heavy saucepan over moderately low heat and whisk in flour, then cook roux, whisking, 3 minutes. Add broth in a stream, whisking, and bring to a boil, whisking. Whisk in milk and simmer sauce, whisking occasionally, 5 minutes. Stir in mushroom mixture, lemon juice, and salt. Flake tuna into sauce and stir gently. Season sauce with salt and pepper.
• Cook noodles in a 5- to 6-quart pot of boiling salted water until al dente. Drain noodles in a colander and return to pot. Add sauce and stir gently to combine. Transfer mixture to baking dish, spreading evenly.
• Toss together bread crumbs and cheese in a bowl. Drizzle with oil and toss again, then sprinkle evenly over casserole. Bake until topping is crisp and sauce is bubbling, 20 to 30 minutes.

Steps:

• Preheat oven to 350°. Cook noodles according to package directions; drain. Transfer to a shallow 3-qt. or 13x9-in. baking dish coated with cooking spray. , Meanwhile, in a large nonstick skillet, heat butter over medium-high heat. Add onion; cook and stir until tender. In a small bowl, whisk cornstarch, milk and seasonings until smooth; stir into pan. Stir in broth. Bring to a boil; cook and stir until thickened, about 2 minutes. Stir in 3/4 cup cheese until melted; stir in broccoli and tuna., Spoon over noodles; mix well. Sprinkle with remaining cheese. Toss bread crumbs with melted butter; sprinkle over casserole. Bake, covered, 45 minutes. Uncover and bake until cheese is melted, 15-20 minutes longer.
  Freeze option: Cool unbaked casserole; cover and freeze. To use, partially thaw in refrigerator overnight. Remove from refrigerator 30 minutes before baking. Preheat oven to 350°. Bake casserole as directed, increasing time as necessary to heat through and for a thermometer inserted in center to read 165°.