Onion Calaste(Casserole)
A savory casserole featuring sweet Vidalia onions, melted Swiss cheese, and toasted French bread, perfect for comforting family dinners or special occasions with rich, cheesy flavors.
Ingredients
Instructions
- Melt the butter in a skillet.
- Add sliced onions and cook on low, stirring often, covered, for 20 to 30 minutes or until soft.
- Spoon the cooked onions into a casserole dish.
- Spread grated Swiss cheese over the onions and sprinkle with pepper.
- Heat the cream of chicken soup and milk in the same skillet, stirring constantly until smooth.
- Pour the sauce over the onion and cheese layers.
- Stir slightly with the tip of a knife to let the sauce flow to the bottom of the dish.
- Overlap the slices of French bread into a ring on top of the casserole.
- Bake at 350°F for 30 minutes until the bread is toasted and the sauce is bubbly.
Tips & Substitutions
For best results, use fresh Vidalia onions for their sweetness. If Swiss cheese isn't available, Gruyère or a mild cheddar can be substituted. To enhance flavor, consider adding herbs like thyme or oregano. For a heartier option, mix in some cooked chicken or sausage. This dish can be prepared ahead of time and refrigerated before baking.
Serving Suggestions
This Onion Calaste pairs beautifully with a light salad or steamed vegetables for a balanced meal. Consider serving alongside roasted chicken or pork for added protein. It's also a great side dish for gatherings or potlucks, complementing various main courses. For a complete meal, serve with a warm bread basket.
Storage & Reheating
Store leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place in an oven-safe dish and cover with foil. Bake at 350°F until warmed through, about 20-25 minutes. Alternatively, individual portions can be microwaved for quick reheating.
Nutrition & Diet Analysis (per serving)
Each serving of Onion Calaste(Casserole) contains roughly 671 calories, with 6g protein, 54g carbohydrates, and 48g fat. It is an excellent source of vitamin C (63% of the Daily Value), iron (25% of the Daily Value), and calcium (20% of the Daily Value), and a good source of vitamin A and protein. Note that it is relatively high in sodium, at 573mg per serving (25% 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 dish ahead of time?
Yes, you can prepare the casserole up to the baking step, cover it tightly, and refrigerate for up to 24 hours. When ready to bake, add an extra 10-15 minutes to the baking time to ensure it's heated through.
What can I use instead of cream of chicken soup?
If you prefer a vegetarian option, you can substitute with cream of mushroom soup or a homemade white sauce. Just make sure to adjust the seasoning to maintain the flavor balance in the casserole.
How can I make this dish spicier?
To add some heat, you can sprinkle in some red pepper flakes or add diced jalapeños to the onion mixture while cooking. A dash of hot sauce in the milk mixture can also give it a nice kick without overpowering the dish.
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).