Cheesy Baked Vidalia Onions

Okay, hear me out—onions, but like, soft, cheesy, and baked to golden perfection. I know it sounds simple, but wow. These Cheesy Baked Vidalia Onions totally surprised me.
I made them one night, and they came out melty, sweet, and super tasty. The cheese gets all bubbly on top. And the onions? So soft they just melt in your mouth.
If you want something easy and cozy, this is it. It’s perfect as a side, but honestly, I could eat a whole plate. You’ll love how comforting it feels.
Wanna try them too? I’ll walk you through it. Let’s make something cheesy and delicious!

Why You’ll Love This Recipe
- Simple Yet Flavorful: The natural sweetness of Vidalia onions combined with melty cheese and aromatic seasonings creates a mouthwatering experience.
- Quick to Prepare: With only a few ingredients, this dish comes together in no time and bakes up perfectly in under an hour.
- Comforting & Rich: The buttery cheese topping adds richness, while the baked onions offer a tender, flavorful bite.
- Great for Special Occasions: Whether you’re hosting a dinner party or preparing a weeknight meal, these cheesy onions elevate any occasion.
- Kid-Friendly: With the mild sweetness of Vidalia onions and gooey cheese, even picky eaters will love them!
Required Kitchen Tools
Before we jump into the recipe, make sure you have the following tools on hand:
- Baking Dish: A 9×9-inch baking dish works perfectly for this recipe, but you can adjust based on your desired portion size.
- Sharp Knife: A sharp knife helps slice through the onions evenly without tearing them.
- Measuring Spoons & Cups: These are essential to ensure you get the perfect balance of seasonings and cheese.
- Grater: To grate the cheeses, a box grater or food processor is ideal.

Ingredients
Here’s a breakdown of the ingredients you’ll need to make these delicious cheesy baked onions. Exact measurements are listed in the recipe card below:
- Vidalia Onions: These sweet onions are the star of the dish. They’re milder and sweeter than regular onions, making them the perfect choice for baking.
- Unsalted Butter: Butter gives the onions a rich, savory flavor and helps them caramelize as they bake.
- Salt: Just a pinch of salt enhances the natural sweetness of the Vidalia onions and brings out the flavor.
- Garlic Powder: Garlic powder adds a subtle, aromatic kick that complements the sweetness of the onions.
- Oregano: A touch of oregano adds an herbaceous note that pairs beautifully with the onions and cheese.
- Italian Blend Cheese: This melty blend of mozzarella, provolone, and other cheeses provides a gooey, cheesy layer that melts perfectly over the onions.
- Cheddar Cheese: Sharp cheddar cheese adds a savory and slightly tangy contrast to the milder Italian blend.
- Parmesan Cheese: A sprinkle of Parmesan cheese adds a nice, salty bite and helps achieve a golden-brown crust on top.
Variations for Cheesy Baked Vidalia Onions
- Add Bacon: For a smoky twist, sprinkle crumbled cooked bacon on top of the onions before baking.
- Add Fresh Herbs: Fresh thyme, rosemary, or basil can add extra flavor and freshness to the dish.
- Make It Spicy: If you enjoy a little heat, sprinkle some crushed red pepper flakes or add diced jalapeños to the cheese mixture.
- Use Different Cheeses: While Italian blend and cheddar work wonderfully, you can experiment with other cheeses like Gruyère, gouda, or fontina for a different flavor profile.

Step-by-Step Instructions
1. Prepare the Onions
Start by peeling the Vidalia onions and cutting off the tops and bottoms. Then, slice them in half vertically, creating two halves from each onion. Carefully remove some of the layers from each half to create a small “cup” shape, ensuring the onion stays intact.
2. Sauté the Onions (Optional)
For an extra layer of flavor, you can sauté the onion halves in a pan with some butter for 5-7 minutes before baking. This step helps to bring out the natural sweetness of the onions and gives them a richer taste.
3. Season the Onions
Melt 4 tablespoons of unsalted butter and brush it generously over the cut side of each onion half. Then, sprinkle the onions with salt, garlic powder, and oregano. This seasoning blend will enhance the flavor of the onions and help the cheese adhere better.
4. Add the Cheese
In a bowl, combine the Italian blend cheese, shredded cheddar cheese, and Parmesan cheese. Mix them together until evenly distributed. Generously fill each onion half with the cheese mixture, pressing it down gently to ensure it sticks to the onions.
5. Bake the Onions
Preheat your oven to 375°F (190°C). Arrange the cheesy onions in a greased baking dish, cut side up. Bake for 30-35 minutes, or until the cheese is bubbly and golden brown, and the onions are tender when pierced with a fork.
6. Serve and Enjoy!
Once baked, remove the onions from the oven and let them cool for a few minutes. Serve them as a side dish, snack, or appetizer. These cheesy baked Vidalia onions are guaranteed to be a hit!
Serving and Decoration

How to Serve Cheesy Baked Vidalia Onions
These cheesy baked onions are incredibly versatile and can be served in a variety of ways:
- As a Side Dish: Pair them with a juicy steak, roasted chicken, or grilled fish for a complete meal.
- In a Salad: Slice the baked onions into wedges and add them to a salad for a warm, savory addition.
- As an Appetizer: Serve these cheesy onions as an appetizer at your next dinner party or family gathering. They’re perfect for sharing!
- As a Snack: Enjoy these baked onions as a tasty, comforting snack with a side of your favorite dipping sauce.
How to Store Leftovers
- Cooked Onions: Store any leftover cheesy baked Vidalia onions in an airtight container in the fridge for up to 3 days. When reheating, you can microwave them or place them back in the oven at 350°F for 10-15 minutes to warm through.
- Uncooked Onions: If you’ve prepared the onions ahead of time and want to bake them later, cover them with plastic wrap or foil and refrigerate. Bake them within 24 hours for the best results.
Nutrition with Table Format
Here’s a breakdown of the approximate nutritional information for one serving (one half of a cheesy Vidalia onion) based on the ingredients used:
Nutrient | Amount per Serving |
---|---|
Calories | 250 |
Total Fat | 20g |
Saturated Fat | 12g |
Cholesterol | 40mg |
Sodium | 550mg |
Total Carbohydrates | 15g |
Dietary Fiber | 2g |
Sugars | 6g |
Protein | 10g |
Please note that these values are estimates and can vary depending on the specific ingredients used.
Conclusion
These Cheesy Baked Vidalia Onions are the perfect combination of sweetness, richness, and savory goodness. Whether you’re preparing a simple weeknight meal or entertaining guests, this dish is sure to impress. The creamy cheese melts beautifully over the tender onions, creating a satisfying and comforting side that pairs well with so many main courses. Plus, it’s so easy to make, you’ll want to add it to your regular meal rotation. So why wait? Grab some Vidalia onions, and let’s get baking!
Cheesy Baked Vidalia Onions
Course: Uncategorized4
servings10
minutes35
minutes250
kcalIngredients
3-4 Vidalia sweet onions
4 tbsp unsalted butter
1 tsp salt
1 tsp garlic powder
1/2 tsp oregano
1 cup Italian blend cheese, finely shredded
1 cup cheddar cheese, finely shredded
1/2 cup Parmesan cheese, finely shredded
Directions
- Preheat your oven to 375°F (190°C).
- Peel the onions and slice them in half vertically. Create small cups by removing some layers from each half.
- Melt the butter and brush it generously on the cut side of each onion.
- Sprinkle with salt, garlic powder, and oregano.
- In a bowl, combine the Italian blend cheese, cheddar cheese, and Parmesan cheese. Fill each onion half with the cheese mixture.
- Place the onions in a greased baking dish, cut side up, and bake for 30-35 minutes until golden and tender.
- Let cool for a few minutes before serving.