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Tennessee Onions are a rich and cheesy baked dish that showcases the natural sweetness of Vidalia onions. The layers of tender onion rings are smothered in a decadent trio of melted cheeses, seasoned to perfection, and baked until golden and bubbly. This comforting side dish is a guaranteed favorite for gatherings, holiday dinners, or any occasion where indulgence is key.
Table of Contents
- Why Tennessee Onions Are Perfect for Any Occasion
- Everything You Need for Tennessee Onions
- How To Make Tennessee Onions Step by Step
- Meal Prep and Storage Tips
- What To Serve with Tennessee Onions
- Frequently Asked Questions
Why Tennessee Onions Are Perfect for Any Occasion
- The natural sweetness of Vidalia onions shines in this dish, complemented by gooey, melted cheeses for a rich flavor profile.
- It’s easy to prepare with just 10 minutes of prep time, making it feasible for both weeknight dinners and special events.
- With ingredients that are pantry staples, Tennessee Onions provide a simple way to elevate classic side dishes.
- This baked onion casserole pairs beautifully with barbecue meats, complementing smoked flavors with buttery, cheesy goodness.
Everything You Need for Tennessee Onions
- 2 large sweet onions (such as Vidalia), peeled and sliced into 1/4-inch rings
- 2 cups shredded mozzarella cheese
- 1 cup shredded cheddar cheese
- 1 cup grated Parmesan cheese
- 1/4 cup unsalted butter, melted
- 1 teaspoon garlic powder
- 1 teaspoon smoked paprika
- 1 teaspoon dried parsley
- Salt to taste
- Freshly ground black pepper to taste
- Cooking spray or a small amount of olive oil for greasing the baking dish
Vidalia onions are a key component here, contributing their natural sweetness and delicate texture to balance the richness of the cheese blend. The combination of mozzarella, cheddar, and Parmesan ensures the perfect mix of creaminess, sharpness, and nutty undertones.
How To Make Tennessee Onions Step by Step
- Preheat your oven to 350°F (175°C).
- Lightly grease a 9×13-inch baking dish with cooking spray or olive oil.
- Arrange the onion slices in the baking dish, ensuring they overlap slightly for a layered presentation.
- In a medium bowl, combine the shredded mozzarella, cheddar, and Parmesan cheeses.
- Sprinkle the cheese mixture evenly over the onion layers, covering them completely.
- Drizzle the melted butter over the top to enhance the flavor and texture.
- Season with garlic powder, smoked paprika, dried parsley, salt, and freshly ground black pepper.
- Cover the dish loosely with aluminum foil and bake for 25 minutes.
- Remove the foil and continue baking uncovered for an additional 15 minutes, or until the cheese is golden and bubbly.
- Let the dish cool slightly before serving. Serve warm as a flavorful side or appetizer.
A versatile countertop oven for baking, broiling, and air frying — perfect for recipes like Tennessee Onions.
Ideal for baking layered dishes like Tennessee Onions — durable and easy to clean.
Meal Prep and Storage Tips
Tennessee Onions can be prepared up to one day in advance; simply assemble the dish, cover tightly, and refrigerate until ready to bake. Once cooked, store leftovers in an airtight container in the refrigerator for up to 3 days.
To reheat, warm the dish in a 350°F oven until heated through, or microwave individual portions for quicker results. Freezing is not recommended, as the texture of the sweet onions may become mushy.
What To Serve with Tennessee Onions
- Smoked brisket: The buttery onions and melted cheese complement the smoky, savory flavors perfectly.
- Pulled pork: Add a Southern touch by pairing this casserole with tender pulled barbecue pork.
- Roasted chicken: The mild sweetness of the onions balances the herbaceous notes of chicken.
- Grilled vegetables: For a lighter pairing, serve alongside vibrant grilled zucchini, peppers, or asparagus.
Frequently Asked Questions
- Can I use regular onions instead of sweet onions? Sweet onions, like Vidalia, are recommended for their mild flavor, but yellow onions can be used if needed.
- What if I don’t have all three types of cheese? Feel free to substitute with similar cheeses, such as Gruyère or Monterey Jack, for a comparable flavor and texture.
- Is it possible to make this dish gluten-free? Yes, Tennessee Onions are naturally gluten-free as written. Just confirm your seasonings and cheeses are labeled gluten-free.
Tennessee Onions
Ingredients
- 2 large sweet onions (such as Vidalia, peeled and sliced into 1/4-inch rings)
- 2 cup shredded mozzarella cheese
- 1 cup shredded cheddar cheese
- 1 cup grated Parmesan cheese
- 1/4 cup unsalted butter (melted)
- 1 teaspoon garlic powder
- 1 teaspoon smoked paprika
- 1 teaspoon dried parsley
- salt (to taste)
- freshly ground black pepper (to taste)
- cooking spray or olive oil (for greasing the baking dish)
Instructions
- Preheat your oven to 350°F (175°C).
- Lightly grease a 9x13-inch baking dish with cooking spray or olive oil.
- Arrange the onion slices in the baking dish, keeping them in overlapping layers for a visually appealing presentation.
- In a medium bowl, mix the mozzarella, cheddar, and Parmesan cheeses together.
- Evenly sprinkle the mixed cheeses over the onion layers in the baking dish.
- Drizzle the melted butter over the cheese and onions.
- Season the dish with garlic powder, smoked paprika, dried parsley, salt, and freshly ground black pepper.
- Cover the baking dish loosely with aluminum foil and bake in the preheated oven for 25 minutes.
- Remove the foil and bake uncovered for an additional 15 minutes, or until the cheese is golden and bubbly.
- Let the dish cool slightly before serving. Serve warm as a side dish or appetizer.
Notes
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