Tennessee Onions Casserole

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You haven’t had any side dish quite like this one before. Onions are typically used as a support ingredient and overlooked as the main star of a dish. However, this recipe is different. Onions are definitely the star here.

The recipe is a heady concoction of onions, butter and cheese primarily. There are also herbs to elevate the overall flavor. To make this mouthwatering dish, you are going to need sweet onions like Vidalia or similar. There are other sweet onion varieties but Vidalia are the best-known and, according to just about everyone in Georgia, the best.

While it cooks, the cheese melts and blends with the butter and herbs to make a thick and tasty sauce. This pairs so well with any kind of main dish, so try it alongside anything from grilled chicken to steaks, ribs, or take it along to a potluck meal. You just can’t go wrong with this amazing onion side dish.

Why You’ll Love the Recipe:

This is probably the most delicious recipe you can make using onions. Ingredients like cheese, herbs and mustard bring out the beautiful flavor of the sweet onions, and this is one side dish you’ll want to make again and again.

How to Serve It:

You’re only limited by your imagination here. Seriously, these go with anything! Try them with ribs, steaks, grilled chicken, on top of a juicy hamburger or cheeseburger, alongside baked potatoes or even between two slices of bread. The sky is the limit. You can even eat them with a spoon right out of the baking dish!

Ingredients needed:

  • Sweet onions
  • Dried parsley flakes
  • Cayenne pepper
  • Shredded gouda cheese
  • Shredded cheddar cheese
  • Dried thyme
  • Garlic salt
  • Dried parsley flakes
  • Dry mustard
  • Dried oregano
  • Salted butter
  • Cooking spray, as needed

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Tennessee Onions Recipe

Plant Prosperous
This is probably the most delicious recipe you can make using onions. Ingredients like cheese, herbs and mustard bring out the beautiful flavor of the sweet onions, and this is one side dish you’ll want to make again and again.
Cook Time 1 hour 10 minutes
Total Time 1 hour 10 minutes
Cuisine American
Servings 10

Ingredients
  

  • 2 ½ pounds about 3 big ones sweet onions, in ¼-inch to ½-inch slices
  • 1 teaspoon dried parsley flakes
  • ¼ teaspoon cayenne pepper
  • 4 ounces 1 cup shredded gouda cheese
  • 4 ounces 1 cup shredded cheddar cheese
  • 1 teaspoon dried thyme
  • 1 teaspoon garlic salt
  • 1 teaspoon dried parsley flakes
  • ½ dry mustard
  • ½ teaspoon dried oregano
  • ¼ cup chopped salted butter
  • Nonstick cooking spray as needed

Instructions
 

  • Preheat the oven to 325 degrees F and spritz cooking spray over a 13×9-inch baking sheet.
  • Toss the onion slices in a bowl with parsley, thyme, oregano, garlic salt, cayenne pepper, and mustard.
  • Transfer into the greased baking dish and dot the butter on top.
  • Sprinkle the cheese on top.
  • Now cover the baking dish with aluminum foil and bake for about 40 minutes or until the onions are soft.
  • Discard the foil and bake for half an hour more or until golden brown on top.

Can You Make It Ahead?

You can prepare the dish ahead if you want. Just keep it refrigerated until you’re ready to cook it.

Storage Instructions:

You’re unlikely to have leftovers but, if you do, keep them refrigerated in an airtight container and eat within 3 days. You can microwave them or reheat them on the stove.

Variations and Substitutions:

Feel free to use any type of cheese you want here. Also, you can use other onions. Walla walla are good if you can’t find Vidalia. You can even use regular yellow onions (perhaps add a pinch of white sugar to the dish, in this case).

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