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–+ servings
Tennessee Onions

Savory Baked Tennessee Onions: A Southern Comfort Delight

Baked Tennessee Onions are a heartwarming side dish combining sweet Vidalia onions with a cheesy topping, perfect for any gathering.
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Prep Time 15 minutes
Cook Time 1 hour 10 minutes
Cooling Time 5 minutes
Total Time 1 hour 30 minutes
Servings: 6 servings
Course: Side Dishes
Cuisine: Southern
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Onions
  • 3 large Vidalia Onions can substitute with Texas sweet or Walla Walla onions
  • 4 tablespoons Unsalted Butter or margarine/olive oil for lighter option
  • 1 teaspoon Dried Thyme Leaves use fresh thyme at triple the amount
  • 1 teaspoon Garlic Powder or fresh garlic at a 1:1 ratio
  • 1 tablespoon Cajun Seasoning can substitute with homemade blend of paprika, cayenne, and black pepper
  • 1 teaspoon Dry Mustard can use Dijon in smaller quantities
  • to taste Salt adjust to taste
For the Cheesy Topping
  • 1 cup Mozzarella Cheese can substitute with provolone or fontina
  • 1 cup Cheddar Cheese Gruyere can be an alternative
  • 1/2 cup Parmesan Cheese Pecorino Romano is a good substitute

Equipment

  • Oven
  • 9x13 inch baking dish
  • Mixing bowl

Method
 

Step-by-Step Instructions for Tennessee Onions
  1. Preheat your oven to 350°F (177°C) and grease a 9x13 inch baking dish with butter or cooking spray.
  2. In a mixing bowl, combine dried thyme, garlic powder, cajun seasoning, dry mustard, and salt to create a spice blend.
  3. Slice the Vidalia onions into thick rings and toss them in the seasoning mixture to coat evenly.
  4. Layer the seasoned onion slices into the baking dish and place small slices of unsalted butter on top.
  5. Sprinkle mozzarella and cheddar cheeses over the onion layers evenly.
  6. Cover the dish tightly with aluminum foil and bake for 45 minutes.
  7. Remove the foil, sprinkle Parmesan cheese on top, and bake uncovered for an additional 25-30 minutes until golden brown.
  8. Let cool for a few minutes before serving.

Nutrition

Serving: 1servingCalories: 350kcalCarbohydrates: 25gProtein: 10gFat: 25gSaturated Fat: 15gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gCholesterol: 70mgSodium: 500mgPotassium: 300mgFiber: 2gSugar: 3gVitamin A: 500IUVitamin C: 10mgCalcium: 250mgIron: 1mg

Notes

Ensure all onion slices are fully coated with the seasoning mix for maximum flavor. Allow the dish to cool for easier serving.

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