Cheesy Tennessee Onions – Creamy & Irresistible Side Dish

If you’ve never tried Cheesy Tennessee Onions, you’re in for a treat. This classic Southern side dish turns humble sweet onions into something magical by layering them with butter, spices, and a rich cheese topping that bakes to golden, bubbly perfection. It’s the kind of recipe that shows up at family gatherings, holiday spreads, and summer barbecues, and always disappears fast.

Why You’ll Love This Recipe

• Simple Ingredients – Just onions, cheese, and pantry staples create a show-stopping side.
• Big Flavor – Sweet, tender onions pair perfectly with a creamy, cheesy topping.
• Perfect for Gatherings – A crowd-pleaser at holidays, potlucks, or weeknight dinners.
• Make-Ahead Friendly – Prep in advance and bake when ready to serve.

Ingredients

• 3 large sweet onions (Vidalia preferred), sliced into ½-inch rings
• 4 tablespoons butter, melted
• 1 teaspoon garlic powder
• 1 teaspoon salt
• ½ teaspoon black pepper
• 2 cups shredded cheese (cheddar, mozzarella, or a blend)
• ½ cup grated Parmesan cheese
• ½ cup mayonnaise or sour cream
• Fresh parsley for garnish

Step-by-Step Instructions

1. Preheat oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.
2. Slice onions into ½-inch rings and spread them evenly in the baking dish.
3. Drizzle melted butter over onions and season with garlic powder, salt, and pepper.
4. In a medium bowl, mix shredded cheese, Parmesan, and mayonnaise (or sour cream) until smooth.
5. Spread the cheese mixture evenly over the onions, covering them completely.
6. Bake uncovered for 30–35 minutes, or until onions are tender and the topping is golden and bubbly.
7. Garnish with fresh parsley and serve warm.

Tips & Variations

• Onions: Vidalia onions are traditional, but any sweet onion will work.
• Cheese: Use a blend of cheddar and mozzarella for gooey texture, or swap in Gruyère for a gourmet twist.
• Crunchy Topping: Add crushed Ritz crackers or breadcrumbs on top for extra texture.
• Make Ahead: Assemble the dish a day ahead and refrigerate. Bake just before serving.

Storage & Freezer Instructions

• Refrigerate: Store leftovers in an airtight container for up to 3 days. Reheat in the oven at 325°F until warmed through.
• Freeze: Wrap tightly in foil and freeze up to 2 months. Thaw overnight in the fridge before reheating.

Serving & Pairing Ideas

• Perfect alongside roast chicken, turkey, or ham.
• Serve with barbecue ribs or pulled pork for a Southern-style feast.
• Add a fresh green salad or steamed vegetables to balance the richness.

Frequently Asked Questions

Can I use yellow onions instead of Vidalia?

Yes, but yellow onions are stronger. For best results, stick with sweet onions.

Can I make this recipe ahead of time?

Absolutely. Assemble, cover, and refrigerate up to 24 hours in advance. Bake just before serving.

What’s the best cheese for this dish?

Sharp cheddar gives the most flavor, but mixing cheddar with mozzarella makes it extra gooey.

Can I make it lighter?

Yes, use light mayo or sour cream and reduce the cheese slightly.

Ready to Make It?

This Cheesy Tennessee Onions recipe is the definition of Southern comfort food. With just a few simple ingredients, you’ll have a bubbling, golden casserole that’s guaranteed to steal the spotlight. Don’t forget to pin this recipe so you’ll have it handy for the holidays or your next potluck!

You Might Also Like

• Ground Turkey Sweet Potato Bake – Hearty and wholesome.
• Broccoli Cheese Rice Casserole – Cheesy and comforting.
• Chicken Noodle Soup – Classic and cozy.
• Cabbage Rolls – Savory and filling.

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