My Favorite Onion Casserole
A comforting onion casserole layered with cheese and savory cream of mushroom or chicken soup, topped with buttery cracker crumbs—perfect for family dinners or gatherings.
Ingredients
Instructions
- Put layers of sliced onions in a casserole dish.
- Mix the cream of mushroom or chicken soup, milk, and cheese together.
- Pour the mixture over the layered onions.
- Top with buttered cracker crumbs.
- Bake at 350°F (175°C) for 25 to 30 minutes.
Tips & Substitutions
For added flavor, consider sautéing the onions in a bit of the melted butter before layering them in the dish. You can substitute the cream of mushroom soup with a homemade white sauce or use a different type of cheese like sharp cheddar for a more robust flavor. If you're looking for a vegetarian option, ensure your soup and cheese are meat-free.
Serving Suggestions
This onion casserole pairs beautifully with a fresh green salad or roasted vegetables for a complete meal. Consider serving it alongside meat dishes like roast chicken or pork for a comforting family dinner. For a cozy night in, enjoy it with a side of Bachelor Biscuits for a hearty and satisfying spread.
Storage & Reheating
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place it in the oven at 350°F (175°C) until warmed through, about 15-20 minutes. You can also microwave individual portions, but be cautious not to overheat, as the texture may change.
Nutrition & Diet Analysis (per serving)
Each serving of My Favorite Onion Casserole contains roughly 296 calories, with 6g protein, 33g carbohydrates, and 16g fat. It is a good source of calcium (14% of the Daily Value), protein (13% of the Daily Value), and iron (10% 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 use frozen onions instead of fresh?
Yes, you can use frozen onions, but they may release more moisture during cooking. It's best to thaw and drain them before layering in the casserole to avoid excess liquid, which could make the dish soggy.
How can I make this dish gluten-free?
To make the onion casserole gluten-free, simply use gluten-free cracker crumbs or crushed gluten-free cereal as a topping. Additionally, check the labels on the cream of mushroom or chicken soup to ensure they are gluten-free.
What can I do if I don't have cream of mushroom soup?
If you don't have cream of mushroom soup, you can easily make a homemade version by combining a roux with sautéed mushrooms and cream or milk. Alternatively, cream of chicken soup can also be used for a different flavor profile.
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).