Sweet, tender onions enveloped in a golden blanket of cheesy, buttery bliss—Tennessee Onions are the ultimate comfort food side dish. Whether you’re firing up the grill for a summer cookout or preparing a cozy dinner during cooler months, this Southern classic delivers richness and warmth in every bite. The natural sweetness of the onions pairs harmoniously with gooey melted cheese and savory spices, making each forkful irresistible.

This dish transforms the humble onion into a crave-worthy centerpiece. Baked until beautifully caramelized and bubbling, Tennessee Onions are easy to prepare yet impressive enough for special gatherings. They’re a guaranteed crowd-pleaser, ideal alongside grilled meats, barbecue favorites, or as part of a hearty Sunday supper. If you’re looking for a simple, satisfying way to elevate your sides, these onions won’t disappoint.
Ingredients for this Tennessee Onions Recipe
- 3 to 4 large sweet onions (such as Vidalia), sliced into thick rounds
- 1⁄2 teaspoon garlic powder
- 1⁄2 teaspoon onion powder
- 1⁄2 teaspoon smoked paprika
- 1 teaspoon salt
- 1⁄2 teaspoon black pepper
- 2 tablespoons butter, melted
- 1 cup shredded mozzarella cheese
- 1 cup shredded cheddar cheese
- 1⁄2 cup grated parmesan cheese
- Optional: fresh parsley or chives for garnish

Step 1: Prep the Oven and Onions
Preheat your oven to 375°F (190°C). Peel the onions and slice them into thick, even rings. Separate the rings gently, keeping them whole and stackable.
Step 2: Season Generously
In a small bowl, mix together garlic powder, onion powder, smoked paprika, salt, and black pepper. Place the onion rings in a large bowl or directly in a baking dish, then drizzle with the melted butter and sprinkle the seasoning mix evenly over the top. Toss or gently stir to coat.
Step 3: Add the Cheeses
In a 9×13-inch baking dish (or any oven-safe dish), lay the seasoned onions evenly across the bottom. Sprinkle the mozzarella and cheddar cheeses evenly over the onions, followed by the grated parmesan. Make sure the cheese is evenly distributed to form that gooey, golden crust.
Step 4: Bake to Perfection
Bake uncovered for about 25-30 minutes, or until the onions are tender and the cheese is melted and bubbly with golden edges. If you like a crispier top, broil for an additional 2-3 minutes at the end, keeping a close eye.
Step 5: Garnish and Serve
Remove from the oven and let cool slightly. Garnish with fresh parsley or chives if desired, then serve warm alongside your favorite main dishes like grilled meats, barbecue ribs, or roast chicken.
Frequently Asked Questions
How do I keep the onions from falling apart?
Use sweet onions like Vidalia and slice them thick. Keeping the rings intact while layering helps them hold their shape.
Can I make Tennessee Onions ahead of time?
Yes, you can assemble the dish a few hours in advance and store it in the refrigerator. Bake just before serving for best results.
What kind of cheese works best?
A mix of mozzarella, cheddar, and parmesan creates the perfect balance of meltiness and sharp flavor. Feel free to adjust based on your preference.
Are Tennessee Onions spicy?
Not at all. The spices used are savory and aromatic, not hot. For heat, you can sprinkle in a pinch of cayenne.
Can I grill Tennessee Onions?
Absolutely! Assemble them in a grill-safe pan and cook over indirect heat until tender and bubbly.
What can I serve with this dish?
They pair wonderfully with grilled meats, roast chicken, barbecue ribs, or even as a vegetarian side with baked beans or mac and cheese.

Tennessee Onions Recipe
- Total Time: 40 minutes
- Yield: Serves 4-6
Description
Golden, cheesy, and irresistibly tender—Tennessee Onions are the ultimate Southern-inspired comfort food. This easy recipe takes thick rings of sweet onions and layers them with melted mozzarella, cheddar, and parmesan for a bubbly, savory side that elevates any meal. Whether you’re planning a cozy dinner or need a quick side for your barbecue spread, this dish is a flavorful crowd-pleaser. Perfect for anyone searching for “easy dinner sides,” “Southern recipes,” or “quick comfort food ideas,” Tennessee Onions bring warmth, simplicity, and bold flavor to your table.
Ingredients
3 to 4 large sweet onions (such as Vidalia), sliced into thick rounds
1⁄2 teaspoon garlic powder
1⁄2 teaspoon onion powder
1⁄2 teaspoon smoked paprika
1 teaspoon salt
1⁄2 teaspoon black pepper
2 tablespoons butter, melted
1 cup shredded mozzarella cheese
1 cup shredded cheddar cheese
1⁄2 cup grated parmesan cheese
Optional: fresh parsley or chives for garnish
Instructions
- Preheat oven to 375°F (190°C). Slice onions into thick rings and separate them.
- Mix garlic powder, onion powder, smoked paprika, salt, and pepper.
- Toss onion rings with melted butter and spice blend until well coated.
- Layer onions in a baking dish. Top evenly with mozzarella, cheddar, and parmesan.
- Bake uncovered for 25-30 minutes until cheese is bubbly and edges are golden.
- Optional: Broil for 2-3 minutes for extra crispiness.
- Garnish with parsley or chives. Serve warm.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Side Dish