Tuna Casserole Supreme
A creamy, comforting tuna casserole with mushrooms and onion, baked to perfection. Perfect for quick weeknight dinners or family gatherings craving hearty flavors.
Ingredients
Instructions
- Prepare the macaroni dinner as directed on the package.
- Add the flaked tuna, sliced mushrooms, sour cream, milk, chopped onion, celery salt, and pepper to the cooked macaroni.
- Mix well until all ingredients are combined.
- Pour the mixture into a 1-quart casserole dish.
- Bake in a preheated oven at 350°F for 20 minutes.
Tips & Substitutions
For a creamier texture, consider adding an extra dollop of sour cream or using cream cheese instead of sour cream. If you don’t have tuna, canned chicken or even cooked shrimp can be delicious substitutes. Feel free to enhance the flavor with garlic powder, or mix in some frozen peas for added color and nutrition, similar to what you might find in Kim'S A Crab Pasta Salad.
Serving Suggestions
This casserole is hearty enough to serve on its own, but it pairs beautifully with a fresh green salad or some crusty bread to soak up the delicious sauce. For a complete meal, consider serving it alongside steamed vegetables or even a side of Aunt Sharon'S Stuffed Mushrooms to enhance the seafood theme.
Storage & Reheating
Store any leftover tuna casserole in an airtight container in the refrigerator for up to 3 days. To reheat, place it in the oven at 350°F for about 15-20 minutes or until heated through. Alternatively, you can microwave individual portions for 2-3 minutes, stirring halfway through to ensure even heating.
Nutrition & Diet Analysis (per serving)
Each serving of Tuna Casserole Supreme contains roughly 271 calories, with 14g protein, 43g carbohydrates, and 5g fat. It is an excellent source of vitamin C (31% of the Daily Value) and protein (28% of the Daily Value), and a good source of calcium and vitamin A. Note that it is relatively high in sodium, at 689mg per serving (30% of the Daily Value).
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I make this casserole ahead of time?
Yes, you can prepare the casserole ahead of time. Assemble it in the dish, cover tightly with plastic wrap, and refrigerate for up to 24 hours. When ready to bake, remove it from the fridge and let it sit at room temperature for about 30 minutes before baking as directed.
What can I substitute for macaroni?
If you want to change up the pasta, feel free to use any short pasta like penne or fusilli. Whole wheat or gluten-free pasta can also work well. Just be sure to adjust the cooking time according to the pasta type you choose.
Is it possible to freeze tuna casserole?
Yes, tuna casserole can be frozen. Allow it to cool completely, then transfer to a freezer-safe container. It can be stored for up to 2-3 months. To reheat, thaw in the refrigerator overnight and bake at 350°F until heated through.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).