Tennessee Onions are a simple yet irresistible side dish that transforms humble onions into a cheesy, buttery delight. Whether you’re preparing a meal for a family gathering or looking for a unique addition to your dinner table, this dish is guaranteed to be a hit.
In this guide, we’ll walk you through the ingredients, step-by-step instructions, and expert tips to ensure your Tennessee Onions turn out perfectly every time.

What Are Tennessee Onions?
Tennessee Onions are a classic Southern dish made by layering sweet onions with butter and cheese, then baking them until golden and bubbly. The result is a savory, slightly sweet dish that pairs well with grilled meats, barbecue, or even as a standalone treat.
Ingredients for Tennessee Onions
To make this easy homemade Tennessee Onions recipe, you’ll need:
- 3-4 large sweet onions (Vidalia or Walla Walla work best)
- 1/2 cup unsalted butter, melted
- 1 cup shredded mozzarella cheese
- 1 cup shredded cheddar cheese
- 1/2 cup shredded Parmesan cheese
- 1 teaspoon salt
- 1 teaspoon black pepper
- 1/2 teaspoon garlic powder
- 1/2 teaspoon smoked paprika (optional for extra flavor)
- 1/4 teaspoon cayenne pepper (optional for a bit of heat)
- 1/2 cup crushed Ritz crackers or breadcrumbs (for topping)
- Fresh parsley for garnish
Step-by-Step Instructions
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Grease a baking dish lightly with butter or cooking spray.
Step 2: Slice the Onions
Peel the onions and slice them into thick rings (about 1/4-inch thick). Separate the rings gently and discard the tough root ends.
Step 3: Arrange the Onion Slices
Layer the onion rings in the prepared baking dish, spreading them evenly to ensure even cooking.
Step 4: Add Seasonings and Butter
Sprinkle the salt, pepper, garlic powder, smoked paprika, and cayenne pepper evenly over the onions. Pour the melted butter over the top, ensuring it coats the onions well.
Step 5: Add the Cheese
Sprinkle the mozzarella, cheddar, and Parmesan cheese over the onions, covering them evenly.
Step 6: Add the Topping
Sprinkle the crushed Ritz crackers or breadcrumbs on top for a crunchy finish.
Step 7: Bake to Perfection
Cover the dish with foil and bake for 30 minutes. Then, remove the foil and bake for an additional 15 minutes until the cheese is golden and bubbly.
Step 8: Garnish and Serve
Once out of the oven, let the Tennessee Onions cool slightly before garnishing with fresh parsley. Serve warm and enjoy!
Tips for the Best Tennessee Onions
- Use Sweet Onions: Vidalia or Walla Walla onions bring out the best flavors.
- Don’t Skimp on Cheese: The combination of mozzarella, cheddar, and Parmesan creates a gooey, melty texture.
- Add a Protein: Try adding cooked bacon bits or sausage crumbles for extra heartiness.
- Make It Ahead: You can prepare the dish a day in advance and bake it before serving.
What to Serve with Tennessee Onions
Tennessee Onions pair wonderfully with:
- Grilled Steaks or Chicken
- Baked Potatoes or Mashed Potatoes
- Fresh Green Salad
Conclusion
Tennessee Onions are a comforting, flavorful side dish that deserves a spot on your dinner table. With their rich, cheesy texture and sweet, caramelized onions, this easy recipe is sure to become a favorite.
FAQs
1. Can I use regular onions instead of sweet onions?
Yes, but sweet onions provide the best flavor. If using regular onions, consider soaking them in cold water for 15 minutes to reduce their sharpness.
2. Can I make Tennessee Onions ahead of time?
Absolutely! Assemble the dish, cover, and refrigerate for up to 24 hours before baking.
3. What cheeses work best in this recipe?
Mozzarella, cheddar, and Parmesan are ideal, but feel free to experiment with provolone or gouda.
4. How do I store leftovers?
Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave before serving.
5. Can I make this dish without breadcrumbs?
Yes!