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Tennessee Onions: A Cheesy, Sweet Southern Side Dish

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Tennessee Onions is a comforting Southern casserole featuring sweet Vidalia onions baked with butter and a rich blend of cheddar, Italian blend, and Parmesan cheeses, resulting in a cheesy, sweet side dish perfect for family meals and holidays.

Ingredients

3–4 Vidalia sweet onions, sliced into ¼-inch rings

4 tablespoons unsalted butter, cut into small pieces

1 teaspoon salt

1 teaspoon garlic powder

½ teaspoon dried oregano

1 cup shredded Italian blend cheese

1 cup shredded cheddar cheese

½ cup grated Parmesan cheese

Instructions

  1. Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with non-stick spray.
  2. Peel and slice the Vidalia onions into ¼-inch thick rings. Separate the rings and layer them evenly in the prepared baking dish.
  3. Sprinkle the onions with salt, garlic powder, and dried oregano.
  4. Distribute the butter pieces evenly over the seasoned onions.
  5. Sprinkle the shredded Italian blend cheese, cheddar cheese, and grated Parmesan cheese over the onions and butter.
  6. Cover the baking dish with aluminum foil and bake for 40 minutes.
  7. Remove the foil and continue baking for an additional 30 minutes, or until the top is golden brown and bubbly.

Notes

  • Cheese Substitutions: Try Gruyère or Monterey Jack for a different flavor.
  • Herb Variations: Substitute oregano with thyme or rosemary.
  • Spicy Kick: Add cayenne pepper or red pepper flakes for heat.
  • Vegan Version: Use plant-based butter and dairy-free cheeses.
  • Storage: Refrigerate covered for up to 3 days.
  • Reheating: Bake covered at 350°F for 20 minutes until heated through.
  • Use sweet onions like Vidalia for best flavor, but Walla Walla or Maui onions work too.
  • For softer onions, bake covered initially to allow proper softening.

Nutrition

Find it online: https://recipesbyjanet.com/tennessee-onions-a-cheesy-sweet-southern-side-dish/