Description
Simple, savory, and utterly irresistible, these Baked Tennessee Onions are the ultimate Southern-style side dish. Thick slices of sweet onions are layered with butter, seasonings, and a generous amount of cheese, then baked until tender and golden. This comforting casserole is a must-have for BBQs, holiday tables, potlucks, or anytime you want a crowd-pleasing, cheesy side that pairs with just about anything.
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Ingredients
3–4 large sweet onions (Vidalia or Walla Walla), sliced into thick rings
3 tbsp unsalted butter, cut into small pieces
1½ cups shredded cheese (cheddar, mozzarella, Monterey Jack, or a blend)
½ tsp garlic powder
½ tsp smoked paprika
Salt and black pepper to taste
2 tbsp grated Parmesan cheese (optional for extra flavor)
Fresh parsley, chopped (for garnish, optional)
Instructions
Step 1: Preheat and Prep
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Preheat your oven to 375°F (190°C)
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Lightly grease a baking dish with butter or non-stick spray
Step 2: Slice the Onions
3. Peel the onions and slice them into ½-inch thick rings
4. Separate the rings and layer them evenly in the baking dish
Step 3: Season and Add Butter
5. Sprinkle the onion layers with garlic powder, smoked paprika, salt, and pepper
6. Dot with butter pieces across the surface of the onions
Step 4: Add Cheese
7. Sprinkle shredded cheese evenly over the top of the onions
8. For extra flavor, add a light layer of grated Parmesan over the shredded cheese
Step 5: Bake
9. Cover the dish loosely with foil and bake for 25 minutes
10. Remove foil and bake for another 15–20 minutes, or until the cheese is bubbly and golden and the onions are tender
Step 6: Serve
11. Garnish with fresh parsley if desired
12. Serve hot alongside your favorite grilled meats, burgers, or casseroles
Notes
Use Sweet Onions – Vidalia or Walla Walla onions are perfect for their mild, sweet flavor
Slice Evenly – Uniform thickness ensures even baking
Choose Melty Cheese – Cheddar, mozzarella, and Jack melt beautifully and add richness
Let Rest Before Serving – Let the dish sit for 5 minutes out of the oven to set and cool slightly
Make It a Casserole – Add breadcrumbs or crushed crackers on top for a crunchy finish
- Prep Time: 10 minutes
- Cook Time: 40 minutes
- Cuisine: American – Southern