Recipes and Cooking Tuna Noodle Casserole 3.8 (21) Dijon-style mustard and roasted red sweet peppers update the classic tuna casserole recipe. Yet even a modern take on tuna noodle casserole needs something crunchy on top. As always, potato chips do the trick! By BHG Test Kitchen BHG Test Kitchen The Better Homes & Gardens Test Kitchen has been in continuous operation for nearly 100 years, developing and testing practical, reliable recipes that readers can enjoy at home. The Test Kitchen team includes culinary specialists, food stylists, registered and licensed nutritionists, and other experts with Bachelor of Science degrees in food science, food and nutrition, or culinary arts. Together, the team tests more than 2,500 recipes, produces more than 2,500 food images, and creates more than 1,000 food videos each year in the state-of-the-art test kitchen. Learn about BHG's Editorial Process Published on May 1, 2008 Print Rate It Share Share Tweet Pin Email Prep Time: 25 mins Bake Time: 30 mins Stand Time: 5 mins Total Time: 1 hrs Servings: 4 Jump to Nutrition Facts Ingredients 3 cup medium noodles (4 oz.) 1 cup chopped celery ¼ cup chopped onion ¼ cup butter ¼ cup all-purpose flour 2 - 3 tablespoon Dijon-style mustard 2 ¼ cup milk 1 12 ounce can chunk tuna, drained ½ cup bottled roasted red sweet peppers, chopped Potato chips, optional Directions Preheat oven to 375 degrees F. In large saucepan cook noodles according to package directions. Drain; return noodles to pan. For sauce, in medium saucepan cook celery and onion in hot butter until tender. Stir in flour, mustard, and 1/4 teaspoon black pepper. Add milk all at once; cook and stir until slightly thickened and bubbly, whisking to remove any lumps. Gently fold sauce, tuna, and peppers into noodles. Transfer to lightly greased 1-1/2-quart baking dish. Top with chips. Bake, uncovered, 30 to 35 minutes or until heated through. Let stand 5 minutes. Serves 4. Rate it Print Nutrition Facts (per serving) 419 Calories 16g Fat 36g Carbs 29g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 4 Calories 419 % Daily Value * Total Fat 16g 21% Saturated Fat 10g 50% Cholesterol 110mg 37% Sodium 720mg 31% Total Carbohydrate 36g 13% Total Sugars 8g Protein 29g Vitamin C 52mg 260% Calcium 201.9mg 16% Iron 2.7mg 15% Potassium 576mg 12% Folate, total 112.9mcg Vitamin B-12 3.1mcg Vitamin B-6 0.3mg *The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.