Introduction to Tennessee Onions
What are Tennessee Onions?
Tennessee onions are a delightful baked dish featuring a robust blend of sweet onions layered with an array of cheeses and spices, creating a rich, savory experience. The star ingredient, typically Vidalia or other sweet onions, is sliced and baked to perfection, resulting in a tender, flavorful casserole bursting with Southern charm. This dish exemplifies comfort food at its finest, perfect for gatherings or as a cozy side for your weeknight dinners.
The History and Significance of This Dish
The tradition of preparing Tennessee onions has deep roots, often celebrated in Southern cuisine where onions are a staple. From backyard barbecues to Sunday family dinners, this dish showcases the essence of Southern hospitality. Varieties of sweet onions have long been grown in Tennessee, with towns like Vidalia and Walla Walla garnering fame for their unique flavor profiles. As you enjoy this dish, you're not just savoring a meal; you're partaking in a culinary journey that honors regional agricultural heritage and the bonds of family and community.
For a deeper dive into the history of sweet onions, visit the National Onion Association. Embrace the essence of Southern cooking while making Tennessee onions a cherished part of your own culinary repertoire!

Ingredients for Tennessee Onions
Key ingredients for the recipe
To whip up a delicious batch of Tennessee onions, you'll need some core ingredients that create a heavenly dish. Gather:
- 3 pounds of Vidalia or sweet onions: These provide the perfect balance of sweetness and texture.
- Spices: You'll need kosher salt, dry mustard powder, garlic powder, and smoked paprika for that savory kick. Don't forget a hint of cayenne for a touch of heat!
- Cheeses: A blend of mild cheddar and smoked Gouda brings creaminess and depth, while grated Parmesan adds a savory finish.
- Butter: Diced unsalted butter ensures everything melds beautifully during baking.
Optional ingredients for customization
Want to make your Tennessee onions even more personal? Here are a few customizations:
- Cayenne pepper: Add more or skip it for less heat, depending on your crowd.
- Fresh parsley: Use this for a vibrant garnish right before serving, bringing a pop of color and freshness.
- Additional cheeses: Feel free to experiment with other cheese varieties like Monterey Jack or fontina for a unique twist.
For a deeper dive into ingredient choices or tips on working with onions, check out The Onion's Health Benefits or Cheese Pairing Essentials. Happy cooking!
Preparing Tennessee Onions
Creating a delicious dish like Tennessee onions can bring warmth and comfort to any meal. These tasty baked onions are layered with cheese and spices, making them a delightful side that pairs well with almost anything. Let’s break down the preparation process into easy steps.
Preheat and prepare your baking dish
Start by preheating your oven to 350ºF. While it warms up, grab your trusty 9x13-inch baking dish and give it a light coating of cooking spray to prevent sticking. This is an important step to ensure your Tennessee onions slide out smoothly once they’re perfectly baked.
Slice the onions and season them
Next, it’s onion time! Using about 3 pounds of Vidalia or sweet onions, cut them into ¼-inch-thick slices. The sweet variety is ideal because it enhances the overall flavor of the dish. Place the onion rings into a large bowl and add:
- 1 ½ teaspoons kosher salt
- 1 teaspoon dry mustard powder
- 1 teaspoon garlic powder
- 1 teaspoon smoked paprika
- ¼ teaspoon cayenne pepper (if you like a little kick)
Toss everything together until the onions are well coated. The combination of these seasonings is what makes the dish incredibly flavorful, providing a sweet yet spicy profile to your Tennessee onions.
Layer the ingredients for the bake
Now onto the fun part—layering! Start by arranging half of the seasoned onion rings in the bottom of your prepared baking dish. Sprinkle them with 2 ounces of shredded mild cheddar cheese and 2 ounces of shredded smoked Gouda. This cheesy layer adds richness and creaminess to the final dish.
Next, place the remaining onions on top and repeat the cheese layering with another 2 ounces of each cheese. Finally, finish off with 1 ¼ ounces of grated Parmesan cheese sprinkled on the very top. Adding butter is the cherry on top—scatter 4 tablespoons of diced unsalted butter over the cheese. The butter will melt during baking, infusing the dish with incredible flavor.
Bake covered, then uncovered
Cover the baking dish with aluminum foil and bake in the preheated oven. After about 45 minutes, check to see if the onions are tender and bubbling. Uncover the dish and allow it to bake for an additional 30 minutes until the top is melted and golden brown. The aroma wafting through your kitchen will be heavenly!
Finish with fresh parsley and serve
To give your Tennessee onions a fresh, vibrant touch, sprinkle 2 tablespoons of finely chopped fresh parsley on top right before serving. This not only enhances the presentation but also adds a nice herbal flavor that contrasts beautifully with the richness of the cheese.
And there you have it! A simple yet flavorful way to enjoy Tennessee onions that’s bound to impress your family and friends. Perfect as a side dish or an addition to your main course, these onions are sure to become a household favorite. Happy cooking!
For more great vegetable dishes, check out this link for inspiration!

Variations on Tennessee Onions
Vegetarian Variations
If you're leaning toward a vegetarian twist on classic Tennessee onions, consider ditching the cheese for a creamy vegan alternative made from cashews or nutritional yeast. You can pack in more veggies by layering in sliced bell peppers, zucchini, or even portobello mushrooms. Each addition brings a subtle flavor that complements the sweetness of the onions while keeping the dish hearty and satisfying.
Spicy Options with Added Peppers
For those who crave a bit of a kick, spicy Tennessee onions can be elevated with the addition of fresh or pickled jalapeños, serrano peppers, or even a drizzle of hot sauce. You might find that a pinch of smoky chipotle powder can add a fascinating depth to the dish. It’s a fantastic way to thrill your tastebuds while maintaining the comforting essence of traditional Tennessee onions.
For deeper insights on enhancing your cooking skills and infusing creativity into your dishes, check out Cooking Light for more expert advice!
Cooking tips and notes for Tennessee Onions
Best practices for onion slicing
When preparing Tennessee onions, cutting them properly can make a significant difference in your dish’s texture. For even cooking, make sure to slice the onions crosswise into ¼-inch-thick rings. This method helps them caramelize beautifully in the oven, enhancing their sweetness. Consider using a sharp chef's knife for clean cuts and fewer tears. If you're prone to crying while chopping, try chilling the onions before slicing or wearing goggles—yes, kitchen goggles!
Tips for achieving the perfect cheesy top
To create that irresistible cheesy crust, layer your cheese thoughtfully. By dividing it between the layers, as well as on top, you'll ensure each bite is packed with flavor. Feel free to experiment with different cheese blends; sharp cheddar and creamy gouda work wonderfully together. For an extra crunch, broil the assembled casserole for a couple of minutes after baking; just watch closely to avoid burning. Your Tennessee onions will impress your guests with their deliciously cheesy finish!
For more tips on cooking with cheese, check out this Delicious Cheese Pairing Guide.

Serving Suggestions for Tennessee Onions
Pairing with Proteins or Salads
Tennessee onions are a versatile dish that pairs well with a variety of proteins. Consider serving them alongside perfectly grilled chicken, flavorful turkey bacon, or tender beef steaks. For a lighter option, toss them in a salad featuring mixed greens, cherry tomatoes, and avocados for a burst of flavor and texture. This combination enhances the sweetness of the onions and elevates your meal to new heights.
Best Sides to Accompany the Dish
To complement your Tennessee onions, think about serving them with hearty sides. Some of my favorites include creamy mashed potatoes, roasted vegetables, or even a zesty quinoa salad. These sides balance the richness of the cheese and add a touch of freshness with each bite. For more ideas on pairing dishes, check out resources like Food Network or Bon Appétit.
Enjoy your cooking adventure!
Time details for Tennessee Onions
Preparation time
Getting ready to make Tennessee Onions takes only about 15 minutes. You'll be slicing the onions and mixing up those fantastic spices, which is a breeze!
Cooking time
Once you pop your dish in the oven, it will take about 1 hour and 15 minutes to achieve that rich, cheesy goodness—perfect for a cozy meal.
Total time
In total, you’ll spend approximately 1 hour and 30 minutes from prep to table, making this dish a great option for a weeknight dinner or a weekend gathering with friends.
Give these Tennessee Onions a try! If you're looking for more onion-inspired recipes, check out this fantastic guide on sweet onions for all things onion-related!
Nutritional Information for Tennessee Onions
When you whip up a batch of Tennessee onions, you're treating yourself to a dish that's not only delicious but also packed with some nutritional value. Here’s a quick snapshot of what’s in this mouthwatering casserole.
Calories
Each serving of Tennessee onions contains approximately 310 calories, making it a hearty yet manageable side dish to accompany your favorite main course.
Protein
With about 8 grams of protein per serving, these sultry sweet onions, combined with cheesy goodness, offer a satisfying boost that helps keep you feeling full longer.
Sodium
It's good to be mindful of our sodium intake; this recipe has around 600 milligrams of sodium per serving. While a dash of salt adds flavor, consider pairing this dish with low-sodium options elsewhere in your meal to maintain balance.
For more insights on healthy eating habits and nutrition, check out resources from the American Heart Association.
FAQs about Tennessee Onions
Can I use different types of onions?
Absolutely! While Tennessee onions traditionally include Vidalia or sweet onions for their mild sweetness, you can experiment with yellow or white onions if you prefer a bit more bite. Just keep in mind that the final flavor and texture might slightly vary.
How to store leftovers effectively?
If you happen to have any leftover Tennessee onions, refrigerate them in an airtight container. They can stay fresh for up to 4 days. To reheat, just pop them in the oven or microwave until warm. For an extra touch, consider adding a sprinkle of cheese before reheating for that gooey goodness.
Can I make this dish ahead of time?
Definitely! Preparing Tennessee onions ahead of time can save you precious moments in the kitchen. Assemble the dish, cover it tightly with plastic wrap or foil, and store it in the refrigerator. When you’re ready to serve, bake it straight out of the fridge; just allow a few extra minutes for cooking time. This makes it perfect for gatherings or busy weeknights!
Conclusion on Tennessee Onions
Recap of the deliciousness of Tennessee Onions
Tennessee onions are a delightful blend of sweet and savory flavors, with caramelized onions nestled under a blanket of melted cheese. This dish is not just comfort food; it’s a true crowd-pleaser that makes any meal feel special.
Encouragement to try making them at home
Why not bring this delicious Southern classic into your kitchen? Making Tennessee onions is straightforward and satisfying. Gather your ingredients, and you’ll soon be enjoying a cheesy, flavorful casserole that’s sure to impress your family and friends. Happy cooking!
You can find more delightful onion recipes here.

Tennessee Onions
Equipment
- Oven
- baking dish
- Large Bowl
Ingredients
Onion Mixture
- 3 pounds Vidalia or sweet onions cut crosswise into ¼-inch-thick slices
- 1.5 teaspoons kosher salt
- 1 teaspoon dry mustard powder
- 1 teaspoon garlic powder
- 1 teaspoon smoked paprika
- 0.25 teaspoon cayenne pepper optional
Cheese
- 4 ounces mild cheddar cheese shredded (about 1 cup), divided
- 4 ounces smoked Gouda or cheddar cheese shredded (about 1 cup), divided
- 1.25 ounces grated Parmesan cheese about ⅓ cup store-bought grated
Butter and Garnish
- 4 tablespoons unsalted butter diced (½ stick)
- 2 tablespoons finely chopped fresh parsley leaves for garnish (optional)
Instructions
Preparation
- Heat the oven to 350ºF. Lightly coat a 9x13-inch baking dish with cooking spray. Separate 3 pounds sliced Vidalia onions into rings and place in a large bowl. Add kosher salt, dry mustard powder, garlic powder, smoked paprika, and cayenne pepper, and toss to coat.
- Arrange half of the onion rings in an even layer in the baking dish. Sprinkle evenly with 2 ounces shredded mild cheddar cheese and 2 ounces shredded smoked Gouda cheese (about ½ cup each).
- Arrange the remaining onions on top and sprinkle with the remaining 2 ounces each shredded mild cheddar and smoked Gouda. Sprinkle evenly with grated Parmesan cheese. Scatter diced unsalted butter on top.
- Cover the baking dish with aluminum foil. Bake until the onions are softened and the casserole is bubbling, about 45 minutes. Uncover and bake until the cheese on top is melted and browned in spots, about 30 minutes more. Sprinkle with finely chopped fresh parsley leaves if desired.





Leave a Reply