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Baked Tennessee Onions: A Southern Classic Side Dish with caramelized onions and melted cheese in a white baking dish, garnished with green
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5 from 1 vote

Baked Tennessee Onions

Sweet, buttery, and oh-so-cheesy, Tennessee Onions are a comforting side dish perfect for any occasion! This simple recipe combines the natural sweetness of Vidalia onions with a rich blend of melted cheeses and herbs, making it an irresistible addition to your table.
Prep Time5 minutes
Cook Time40 minutes
Total Time45 minutes
Course: Side Dish
Cuisine: American
Diet: Gluten Free, Vegetarian
Servings: 8 servings
Calories: 1747kcal
Author: Donya Mullins

Ingredients

  • 3-4 Vidalia sweet onions
  • 4 tablespoons butter
  • 1 teaspoon salt
  • 1 teaspoon garlic powder
  • ½ teaspoon of thyme
  • 1 cup Italian blend cheese finely shredded
  • 1 cup cheddar cheese finely shredded
  • ½ cup parmesan cheese finely shredded

Instructions

  • Preheat the oven to a temperature of 350°F. Coat a 9×13-inch baking dish with non-stick cooking spray
  • After peeling your sweet onions, turn them sideways and start slicing them into ¼ inch rounds.
  • Separate the onion rings out so they cook evenly. Don't leave them nested.It is necessary to separate the sliced rounds into individual onion rings.
  • Next, arrange the separated onion rings uniformly across the base of the baking dish. Once arranged, season the onion rings evenly with the salt, garlic powder, and thyme.
  • Distribute the butter pats evenly across the seasoned onion rings in the baking dish.
  • Continue by uniformly sprinkling the Italian blend cheese and cheddar cheese over the arranged onion rings. Finish this cheese layering with a final topping of the shredded parmesan cheese.
  • Bake for 35-40 minutes and then top with fresh parsley.

Notes

Recipe Variations:
    • Spicy Kick: Add a sprinkle of red pepper flakes for a touch of heat.
    • A Touch of Herbs: Swap thyme with rosemary or oregano for a different flavor profile.
    • Cheese Swap: Experiment with mozzarella, gruyere, or gouda (smoked gouda like in my grits casserole are great!) instead of one of the cheeses.
    • Add a Crunch: Top with crispy homemade breadcrumbs or fried onions during the last 10 minutes of baking.
How To Store And Freeze:
  • Refrigerator: Store leftovers in an airtight container for up to 3 days. Reheat in the oven or microwave for best results.
  • Freezer: While this dish is best enjoyed fresh, you can freeze portions for up to a month. Thaw and reheat thoroughly before serving.

Nutrition

Serving: 1 | Calories: 1747kcal | Carbohydrates: 86g | Protein: 81g | Fat: 126g | Saturated Fat: 63g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 24g | Trans Fat: 2g | Cholesterol: 290mg | Sodium: 4520mg | Potassium: 1370mg | Fiber: 9g | Sugar: 51g | Vitamin A: 2980IU | Vitamin C: 49mg | Calcium: 1835mg | Iron: 4mg