Tennessee Onions are a classic Southern side dish that transforms humble onions into a rich, cheesy, and flavorful casserole. This dish is made with sweet onions, creamy cheese, and a touch of seasoning, all baked to golden perfection. It’s a simple yet indulgent recipe that pairs beautifully with a variety of main courses, making it a favorite at family dinners, potlucks, and holiday gatherings.
In this article, we’ll explore everything you need to know about Tennessee Onions, including their ingredients, step-by-step instructions, variations, serving suggestions, and tips for making them perfect every time. Plus, we’ll include external resources to help you master this recipe and learn more about its variations.
What Are Tennessee Onions?
Tennessee Onions are a baked onion casserole that originated in the Southern United States. The dish features thick slices of sweet onions layered in a baking dish, topped with a blend of cheeses, butter, and seasonings, and baked until bubbly and golden. The result is a creamy, cheesy, and slightly caramelized side dish that’s bursting with flavor.
This recipe is incredibly easy to make and requires just a handful of ingredients, yet it delivers a rich and satisfying flavor that’s sure to impress. Whether you’re serving it alongside grilled meats, roasted chicken, or a holiday ham, Tennessee Onions are a versatile and crowd-pleasing addition to any meal.
Ingredients for Tennessee Onions
To make Tennessee Onions, you’ll need the following ingredients:
For the Casserole:
- Sweet Onions (3 large): Vidalia onions or any other sweet variety work best.
- Butter (1/2 cup, melted): Adds richness and helps caramelize the onions.
- Shredded Cheese (2 cups): A blend of mozzarella and Parmesan is ideal, but you can use your favorite cheeses.
- Mayonnaise (1/2 cup): Adds creaminess and helps bind the dish together.
- Garlic Powder (1 teaspoon): For a subtle, savory flavor.
- Salt and Pepper: To taste.
Optional Additions:
- Crushed Ritz Crackers (1/2 cup): For a crunchy topping.
- Fresh Herbs (e.g., parsley or thyme): For garnish and added flavor.
- Bacon Crumbles: For a smoky, savory twist.
How to Make Tennessee Onions
Here’s a step-by-step guide to making this delicious Southern side dish:
Step 1: Preheat the Oven
- Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter or non-stick spray.
Step 2: Prepare the Onions
- Peel the onions and slice them into thick rings, about 1/4 to 1/2 inch thick. Separate the rings and discard the small inner pieces.
Step 3: Layer the Onions
- Arrange the onion rings in a single layer in the prepared baking dish. Overlap them slightly if needed to fit.
Step 4: Make the Cheese Mixture
- In a medium bowl, combine the shredded cheese, mayonnaise, garlic powder, salt, and pepper. Mix until well combined.
Step 5: Assemble the Casserole
- Pour the melted butter evenly over the onion rings. Spread the cheese mixture on top, covering the onions as evenly as possible.
Step 6: Add Optional Toppings
- If desired, sprinkle crushed Ritz crackers or bacon crumbles over the cheese layer for added texture and flavor.
Step 7: Bake
- Bake the casserole in the preheated oven for 30-35 minutes, or until the cheese is melted and bubbly and the onions are tender.
Step 8: Garnish and Serve
- Remove the casserole from the oven and let it cool for a few minutes. Garnish with fresh herbs, if desired, and serve warm.
Variations of Tennessee Onions
While the classic recipe is a hit, there are plenty of ways to customize Tennessee Onions to suit your taste:
- Add Bacon: Sprinkle cooked, crumbled bacon over the cheese layer for a smoky, savory twist.
- Use Different Cheeses: Experiment with different cheese combinations, such as cheddar, Gruyere, or Monterey Jack.
- Make It Spicy: Add a pinch of red pepper flakes or diced jalapeños for a spicy kick.
- Add Vegetables: Mix in sliced bell peppers, mushrooms, or zucchini for added texture and flavor.
- Low-Carb Option: Skip the cracker topping to make the dish keto-friendly.
Serving Suggestions
Tennessee Onions are a versatile side dish that pairs well with a variety of main courses. Here are some ideas:
- Grilled Meats: Serve alongside grilled steak, chicken, or pork chops for a hearty meal.
- Roasted Chicken: The creamy, cheesy onions complement the savory flavors of roasted chicken.
- Holiday Ham: Tennessee Onions are a perfect addition to a holiday spread featuring glazed ham.
- Burgers or Sandwiches: Use the onions as a topping for burgers or sandwiches for a flavorful twist.
Tips for the Best Tennessee Onions
- Use Sweet Onions: Sweet onions like Vidalia or Walla Walla are ideal for this recipe, as they caramelize beautifully and have a mild flavor.
- Slice Evenly: Cut the onion rings to a consistent thickness to ensure they cook evenly.
- Don’t Overbake: Keep an eye on the casserole while it’s in the oven to prevent the cheese from burning.
- Let It Rest: Allow the casserole to cool for a few minutes before serving to let the flavors meld together.
Nutritional Information (Per Serving)
Here’s an approximate breakdown of the nutritional content for Tennessee Onions (based on 6 servings):
- Calories: 250
- Protein: 6g
- Fat: 20g
- Carbohydrates: 12g
- Sodium: 450mg
(Note: Nutritional values may vary depending on the specific ingredients used.)
Tools For This Recipes
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| Tool Name | Purpose | Recommended Features | Affiliate Link Example |
|---|---|---|---|
| Non-Stick Skillets | Ideal for scrambling eggs and sautéing vegetables | Durable, easy to clean, with heat-resistant handles. | Amazon Non-Stick Skillet |
| Immersion Blenders | Perfect for smoothies and protein smoothie bowls | Powerful motor, easy to use, with multiple speed settings and detachable blending shaft. | Amazon Immersion Blender |
| Digital Measuring Tools | Accurate measurement of ingredients for baking and cooking | Digital display, precise readings, compact size. | Amazon Digital Measuring Tool |
| Slow Cooker | Ideal for time-saving breakfast options like breakfast casseroles | Multi-functional, programmable, large capacity, easy to clean. | Amazon Slow Cooker |
| Blender | For smoothies, protein smoothie bowls, and more | High-speed, durable, multiple blending functions. | Amazon Blender |
| Food Processor | Quick ingredient preparation for salads, pancakes, etc. | Versatile, powerful motor, dishwasher-safe parts. | Amazon Food Processor |
| Instant Pot | Great for batch cooking, oatmeal, and more | Multi-functional (slow cooker, rice cooker, pressure cooker), easy-to-use interface. | Amazon Instant Pot |
| Mason Jars | Ideal for preparing overnight oats and chia puddings | Glass jars with airtight lids, various sizes for meal prep. | Amazon Mason Jars |
| Meal Prep Containers | Essential for organizing pre-prepared meals like overnight oats and egg muffins | BPA-free, stackable, and microwave-safe. | Amazon Meal Prep Containers |
| Pancake Art Squeeze Bottles | Fun and creative breakfast options for kids | Precision tips for intricate designs, easy squeeze. | Amazon Pancake Squeeze Bottles |
Frequently Asked Questions (FAQs)
1. Can I make Tennessee Onions in advance?
Yes! You can assemble the casserole a day in advance and refrigerate it. When ready to serve, bake it as directed.
2. Can I use regular onions instead of sweet onions?
While sweet onions are recommended for their mild flavor, you can use regular yellow or white onions if needed. Keep in mind that the flavor may be slightly stronger.
3. How do I store leftovers?
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave before serving.
Why You’ll Love Tennessee Onions
Tennessee Onions are the ultimate comfort food. They’re creamy, cheesy, and packed with rich, savory flavors that everyone loves. Whether you’re serving them as a side dish for a family dinner or bringing them to a potluck, this recipe is sure to be a hit.
For more recipes like this, visit AllRecipes’ Southern-Inspired Collection.
Tennessee Onions: A Simple Yet Flavorful Southern Side
Equipment
- 9×13 inch baking dish
- Knife
- Cutting board
- Small bowl
Ingredients
- 3–4 large sweet onions such as Vidalia, sliced into thick rings
- 2 cups shredded cheese blend cheddar, mozzarella, and Monterey Jack recommended
- 4 tbsp butter melted
- 1 tsp garlic powder
- 1 tsp Italian seasoning
- to taste salt and pepper
- optional fresh parsley for garnish
Instructions
- Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish.
- Arrange thick onion slices in a single layer in the baking dish.
- Drizzle melted butter evenly over the onions.
- Sprinkle garlic powder, Italian seasoning, salt, and pepper over the onions.
- Top generously with the shredded cheese blend, covering all the onions.
- Bake for 30–35 minutes, until the onions are tender and the cheese is melted and bubbly.
- Garnish with fresh parsley if desired. Serve hot as a side dish.
