Mix Ahead Chicken Casserole

Prep: 30 min Cook: 45 min Serves: 8 Cuisine: American

A creamy, cheesy chicken casserole with tender pasta, mushrooms, and onions, perfect for comforting family dinners or meal prep with delicious flavors and easy make-ahead.

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Ingredients

  • 7 oz. package elbow macaroni
  • 3 cups chopped cooked chicken
  • 1 small onion, chopped
  • 2 1/2 oz. jar sliced mushrooms, drained
  • 8 oz. shredded American cheese
  • 2 cups milk
  • 1 can cream of celery soup, undiluted
  • 1/2 tsp. salt

Instructions

  1. Cook the elbow macaroni, drain, and combine with chopped cooked chicken, chopped onion, drained sliced mushrooms, shredded American cheese, milk, cream of celery soup, and salt; mix well.
  2. Spoon the mixture into a lightly greased 3-quart baking dish.
  3. Cover and refrigerate overnight or for several hours.
  4. Remove from refrigerator and let stand at room temperature for 30 minutes.
  5. Bake uncovered at 350°F (175°C) for 45 minutes until heated through and bubbly.

Tips & Substitutions

For a creamier texture, consider adding more cheese or using a blend of cheeses such as cheddar. If you want to add more flavor, you could sauté the onion before mixing it in. For a healthier twist, substitute whole wheat elbow macaroni and add vegetables like spinach or bell peppers. This dish is a great way to use leftover chicken from other recipes.

Serving Suggestions

This casserole is a hearty main dish that pairs well with a fresh green salad or steamed vegetables. For a complete meal, consider serving it alongside garlic bread or a light soup like Delicious Broccoli Soup. It's perfect for potlucks or family gatherings, as it can easily be made ahead of time.

Storage & Reheating

Leftover casserole can be stored in an airtight container in the refrigerator for up to 3-4 days. To reheat, simply place in the oven at 350°F (175°C) for about 20-30 minutes or until heated through. You can also microwave individual portions, but make sure to cover them to retain moisture.

Nutrition & Diet Analysis (per serving)

Each serving of Mix Ahead Chicken Casserole contains roughly 395 calories, with 9g protein, 52g carbohydrates, and 17g fat. It is a good source of vitamin D (19% of the Daily Value), protein (18% of the Daily Value), and iron (17% of the Daily Value). Note that it is relatively high in sodium, at 802mg per serving (35% of the Daily Value).

395 kcal 20% DV
Protein Fat Carbs

Macronutrients

Protein 9.2g 18% DV
Total Fat 17.1g 22% DV
Carbs 52.4g 19% DV
Fiber 2.3g 8% DV
Sugar 18.1g 36% DV

Electrolytes

Sodium 802.5mg 35% DV
Potassium 271.7mg 6% DV
Cholesterol 9.1mg 3% DV

Vitamins & Minerals

Vitamin A 59.7mcg 7% DV
Vitamin C 6.1mg 7% DV
Vitamin D 3.8mcg 19% DV
Calcium 199.6mg 15% DV
Iron 3mg 17% DV
Diet fit Under 400 cal
Contains Milk

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 use different types of pasta in this casserole?

Yes, you can substitute elbow macaroni with other pasta shapes like penne or rotini. Just ensure the cooking time is adjusted accordingly. The key is to use a pasta that holds the sauce well.

Is it possible to make this casserole vegetarian?

Absolutely! You can replace the chicken with a variety of vegetables such as zucchini, bell peppers, or mushrooms. Additionally, substitute the cream of celery soup with a vegetable version to keep it vegetarian-friendly.

Can I freeze the mixed casserole before baking?

Yes, you can assemble the casserole ahead of time and freeze it before baking. Just cover it tightly with plastic wrap and foil. When you're ready to bake, thaw it overnight in the refrigerator and then follow the baking instructions.

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).

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