Why You’ll Love This Recipe

Tennessee Onions bring together the natural sweetness of Vidalia onions with the richness of cheese. The result is a comforting and flavorful dish that’s easy to prepare. The melty cheese topping, combined with the caramelized onions, creates a perfect balance of savory goodness that will make this dish a regular part of your dinner rotation.

Ingredients

3 to 4 Sweet Vidalia onions
4 tablespoons butter
1 teaspoon salt
1 teaspoon garlic powder
½ teaspoon oregano
1 cup Italian blend cheese, shredded
1 cup Cheddar cheese, shredded
½ cup Parmesan cheese, shredded

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

Directions

Preheat the Oven: Heat your oven to 350°F (175°C). Lightly spray a 9×13-inch baking dish with nonstick cooking spray.
Prepare the Onions: Peel the onions and slice them into ¼-inch rounds. Separate the rings gently and spread them evenly in the prepared baking dish.
Season the Onions: Sprinkle the onions with salt, garlic powder, and oregano to enhance their flavor.
Add Butter and Cheese: Cut the butter into 8 slices and distribute it over the seasoned onions. Then, sprinkle the Italian blend and cheddar cheese over the onions.
Finish with Parmesan: Top the onions with a generous layer of Parmesan cheese, ensuring a golden crust when baked.
Bake: Bake for 35 to 40 minutes, or until the cheese is bubbly and golden brown.
Serve: Once baked, remove from the oven and serve hot.

Servings and Timing

Servings: 4-6
Prep Time: 10 minutes
Cook Time: 35-40 minutes
Total Time: 45-50 minutes

Variations

Spicy Kick: Add some crushed red pepper flakes or a dash of hot sauce to the seasoning for an added spicy flavor.
Herb Variation: Swap out oregano for thyme or rosemary for a different herbaceous flavor.

Storage/Reheating

Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days.
Reheating: Reheat in the oven at 350°F for about 10-15 minutes until heated through and the cheese is bubbly.

FAQs

1. Can I use a different type of onion?

While Vidalia onions are ideal for their sweetness, you can substitute them with yellow onions if needed.

2. Can I make this dish ahead of time?

Yes, you can prepare the dish up to the point of baking, cover it, and refrigerate it for a day or two. Bake when ready to serve.

3. Can I use pre-shredded cheese?

Yes, pre-shredded cheese will work, but fresh cheese tends to melt better and result in a smoother, creamier texture.

4. Can I add vegetables to this dish?

You can mix in vegetables like bell peppers or spinach for added flavor and texture.

5. How do I know when the onions are tender?

The onions will be tender when the cheese is golden and bubbly, and the onions should be soft when pierced with a fork.

6. Can I make this dish without cheese?

For a lighter version, you can skip the cheese or substitute it with a non-dairy alternative, but it may not have the same creamy, rich texture.

7. Can I freeze the casserole?

Yes, you can freeze the prepared casserole before baking for up to 2 months. When ready to bake, thaw it in the refrigerator and bake as directed.

8. Can I use a different type of cheese?

Yes, feel free to use different cheeses, such as mozzarella or Gouda, for a unique twist.

9. Can I make this dish spicier?

Yes, adding more garlic or some spicy chili flakes will make the dish spicier if desired.

10. Can I use salted butter instead of unsalted butter?

Yes, but reduce the amount of salt you add to avoid the dish becoming too salty.

Conclusion

Tennessee Onions are a simple yet flavorful side dish that will make any meal feel special. The combination of sweet Vidalia onions, creamy cheese, and savory herbs is irresistible. Whether served at dinner or taken to a potluck, this cheesy, tender dish will be a guaranteed favorite.

Tennessee Onions

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Author: Julia
Total Time: 45-50 minutes
Yield: 4-6 servings
Diet: Vegetarian

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Description

Tennessee Onions are a savory and irresistible side dish featuring sweet Vidalia onions, rich melted cheese, and a blend of garlic and oregano. Baked to golden perfection, this dish is simple to make and packed with flavor. Whether you’re serving it alongside a hearty meal or bringing it to a potluck, Tennessee Onions will quickly become a favorite in your recipe rotation.

Ingredients

3 to 4 Sweet Vidalia onions
4 tablespoons butter
1 teaspoon salt
1 teaspoon garlic powder
½ teaspoon oregano
1 cup Italian blend cheese, shredded
1 cup Cheddar cheese, shredded
½ cup Parmesan cheese, shredded

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Instructions

Preheat the Oven: Heat your oven to 350°F (175°C) and lightly spray a 9×13-inch baking dish with nonstick cooking spray.
Prepare the Onions: Peel the onions and slice them into ¼-inch rounds. Gently separate the rings and spread them evenly in the prepared dish.
Season the Onions: Sprinkle the onions with salt, garlic powder, and oregano for extra flavor.
Add Butter and Cheese: Cut the butter into 8 slices and distribute evenly over the seasoned onions. Sprinkle the Italian blend and cheddar cheese over the onions.
Finish with Parmesan: Top with a generous layer of Parmesan cheese for a golden, bubbly crust when baked.
Bake: Bake for 35-40 minutes, or until the cheese is melted and golden brown.
Serve: Remove from the oven and serve hot.

Notes

Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days.
Reheating: Reheat in the oven at 350°F for 10-15 minutes until heated through and bubbly.
Cheese Variations: Try using mozzarella, Gouda, or Gruyère cheese for a different flavor profile.
Herb Twist: Swap oregano for fresh thyme or rosemary for a different aromatic flavor.

Prep Time: 10 minutes
Cook Time: 35-40 minutes
Category: Side Dish
Method: Baking
Cuisine: American