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Chef Ava

Tennessee Onions

These Tennessee onions are a rich, cheesy Southern side dish made with sweet Vidalia onions sautéed in butter and baked under a golden layer of Italian blend, cheddar, and Parmesan cheese. Simple, comforting, and incredibly flavorful.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 6 servings
Course: Side Dish
Cuisine: Southern
Calories: 280
Ingredients Equipment Method Notes

Ingredients
  

  • 3-4 Vidalia sweet onions
  • 4 tbsp unsalted butter
  • 1 cup Italian blend cheese, shredded
  • 1 cup cheddar cheese, shredded
  • 1/2 cup Parmesan cheese, shredded
  • 1 tsp salt
  • 1 tsp garlic powder
  • 1/2 tsp dried oregano

Equipment

  • large skillet
  • baking dish
  • knife
  • cutting board
  • spoon

Method
 

  1. Preheat oven to 375°F.
  2. Peel onions and slice into thick 1/2-inch rings.
  3. Melt butter in a large skillet over medium heat. Add onions and cook for 5–7 minutes until softened.
  4. Season with salt, garlic powder, and oregano. Stir and cook for 1 more minute.
  5. Transfer onions to a greased baking dish and spread evenly.
  6. Sprinkle Italian blend, cheddar, and Parmesan cheese evenly over the top.
  7. Bake for 20–25 minutes until cheese is melted, bubbly, and lightly golden.
  8. Let cool slightly before serving.

Notes

Use Vidalia or other sweet onions for best results. Do not skip the stovetop sauté step — it ensures tender onions after baking. Cut thick slices to maintain texture. Freshly shredded cheese melts better than pre-packaged.