Tennessee Onions Better Than Onion Rings

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If you love onion rings but want something easier, creamier, and even more indulgent, then Tennessee Onions are about to be your new favorite dish. This Southern comfort side takes sweet Vidalia onions, layers them in a casserole dish, and bakes them with a cheesy, buttery topping until bubbling and golden.The result? Tender, caramelized onions with a creamy, cheesy crust that tastes like a cross between French onion soup and onion dip—but with none of the frying hassle. Tennessee Onions are perfect for BBQ nights, steak dinners, potlucks, or holiday spreads. They’re addictive, comforting, and yes—better than onion rings!

Prep Time: 10 minutes

Assembly Time: 10 minutes

Bake Time: 35–40 minutes

Cool & Set: 5 minutes

Total Time: ~55 minutes

Ingredients

3–4 large sweet onions (Vidalia or similar), thinly sliced into rings

4 tbsp unsalted butter, melted

1 cup shredded mozzarella cheese

1 cup shredded cheddar cheese

½ cup grated Parmesan cheese

½ tsp garlic powder

½ tsp onion powder

½ tsp Italian seasoning (or dried thyme/oregano mix)

Salt & black pepper, to taste

Fresh parsley (optional, for garnish)

Instructions

Preheat oven: Set to 350°F (175°C).

Prep onions: Peel and slice onions into ¼-inch rings. Separate the rings gently.

Layer onions: Place onion rings in a 9×13-inch baking dish in an even layer.

Butter & seasoning: Drizzle the melted butter evenly over onions. Sprinkle with garlic powder, onion powder, Italian seasoning, salt, and pepper.

Add cheeses: Evenly layer mozzarella, cheddar, and Parmesan over the onions.

Tips for Success

Best onions: Use Vidalia or other sweet onions for the richest flavor.

Cheese blend: Don’t skip Parmesan—it gives a sharp bite to balance the sweetness.

Make ahead: Assemble earlier in the day and bake just before serving.

Serving ideas: Great with grilled steak, BBQ chicken, or even just crusty bread.