Golden, cheesy, and baked to perfection, Tennessee onions are the ultimate Southern comfort side dish. Sweet Vidalia onions are layered in a dish, covered with butter, topped with three kinds of cheese, and baked until bubbly and tender. I wanted something cozy and easy, so I kept the prep simple, just slice, season, layer, and bake. The butter seeps into the onions as they cook, softening them while the cheese creates a rich, golden crust that’s completely irresistible.
The aroma fills the kitchen as they bake, and the moment you pull the dish out of the oven, the melted cheese and caramelized edges make it hard to wait. Each bite is creamy and savory with just the right hint of sweetness from the onions. These work perfectly as a side for barbecue, grilled meats, burgers, or even on a holiday table. They’re simple to make and guaranteed to impress.
Why You’ll Love This Recipe
Tennessee onions are quick to prepare, packed with flavor, and always a crowd-pleaser. The ingredients are simple, the method is easy, and the result is rich, cheesy goodness in every bite.
You can also make them your own. Swap cheeses, add spice, or toss in fresh herbs. The recipe is beginner-friendly and works beautifully for weeknights, potlucks, and gatherings.
Ingredients
For the Tennessee Onions:
- 3 to 4 large Vidalia onions (or any sweet onions)
- ½ cup unsalted butter, melted
- 1 cup shredded cheddar cheese
- 1 cup shredded mozzarella cheese
- ½ cup grated Parmesan cheese
- ½ teaspoon garlic powder
- ½ teaspoon paprika
- Salt and black pepper to taste
Step-by-Step Instructions
1. Prep the Onions
Preheat oven to 350°F (175°C) and grease a medium baking dish. Peel the onions and slice them into ½-inch thick rings, separating them gently.
2. Arrange and Season
Spread the onion slices evenly in the dish. Sprinkle with salt, pepper, garlic powder, and paprika for flavor.
3. Add Butter and Cheese
Pour melted butter evenly over the onions, then top with cheddar, mozzarella, and Parmesan cheese.
4. Bake Until Golden
Place in the oven and bake uncovered for 35–40 minutes until the onions are tender and the cheese is bubbly and golden.
5. Serve and Enjoy
Remove from the oven and let rest for 5 minutes before serving. Enjoy hot as a side or appetizer.
Tennessee Onions
Ingredients
For the Tennessee Onions:
- 3 to 4 large Vidalia onions or any sweet onions
- ½ cup unsalted butter melted
- 1 cup shredded cheddar cheese
- 1 cup shredded mozzarella cheese
- ½ cup grated Parmesan cheese
- ½ tsp garlic powder
- ½ tsp paprika
- Salt and black pepper to taste
Instructions
- Slice onions and arrange in a baking dish.
- Season with salt, pepper, garlic powder, and paprika.
- Pour melted butter on top.
- Add cheeses evenly and bake until golden and bubbly.
- Serve hot and enjoy.
Tips & Variations
- Cheesy twist: Swap mozzarella for pepper jack for a spicy kick.
- Herby upgrade: Sprinkle fresh parsley or thyme before serving.
- Extra crispy top: Broil for 1–2 minutes after baking for a golden crust.
- Make-ahead tip: Assemble ahead, refrigerate, and bake right before serving.
Serving Suggestions
Serve Tennessee onions with barbecue ribs, grilled chicken, burgers, or steak. They also make a great side for holiday dinners or casual potlucks.
Final Thoughts
Tennessee onions are one of those dishes that feel fancy without any effort. The sweet onions, buttery base, and cheesy topping come together to make something rich, cozy, and unforgettable. Perfect for weeknights, gatherings, and every time you want a crowd-pleasing side dish.
