Best 7 Sweet Onion Casserole Recipes

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When it comes to hearty and comforting side dishes, Sweet Onion Casserole takes the spotlight. This classic recipe is a symphony of flavors and textures, featuring caramelized onions enveloped in a creamy, cheesy sauce. Its versatility makes it a perfect accompaniment to various main courses, from roasted chicken and grilled steaks to baked ham. With just a handful of pantry staples and a simple cooking process, you can create this delectable casserole that promises to impress your family and friends. This article presents a collection of Sweet Onion Casserole recipes, each offering unique variations to suit different tastes and preferences. From the classic recipe with its harmonious blend of sweet onions, cream, and cheese to a gluten-free version for those with dietary restrictions, this article has something for everyone. Additional recipes include a Low-Carb Sweet Onion Casserole, a flavorful and health-conscious option, and a Sweet Onion Casserole with Bacon, adding a touch of smokiness and crunch to the dish.

Check out the recipes below so you can choose the best recipe for yourself!

SWEET ONION CASSEROLE



Sweet Onion Casserole image

This easy casserole is incredibly tasty. My family asks for it with steak or chicken.-Bobbie McMahan, Anderson, South Carolina

Provided by Taste of Home

Categories     Side Dishes

Time 40m

Yield 10 servings.

Number Of Ingredients 4

5 large sweet onions, halved and sliced
1/2 cup butter
1/2 cup crushed butter-flavored crackers (about 12 crackers)
1/2 cup grated Parmesan cheese

Steps:

  • Preheat oven to 350°. In a large skillet, saute onions in butter until tender. Place half of onions in a greased 2-qt. baking dish; sprinkle with half of the cracker crumbs and cheese. Repeat layers. , Bake, uncovered, until golden brown and bubbly, 25-30 minutes.

Nutrition Facts : Calories 151 calories, Fat 12g fat (7g saturated fat), Cholesterol 28mg cholesterol, Sodium 207mg sodium, Carbohydrate 10g carbohydrate (5g sugars, Fiber 1g fiber), Protein 3g protein.

SWEET ONION CASSEROLE



Sweet Onion Casserole image

This wonderful combination of sweet onions, Swiss cheese, and rice is a tasty side dish for anything from grilled meats to roasted poultry. It is a favorite in our home, and you'll get rave reviews every time you serve it.

Provided by Bobbie Gibson Paulson

Categories     Side Dish     Casseroles

Time 1h30m

Yield 8

Number Of Ingredients 7

¾ cup uncooked basmati rice
5 cups water
¼ cup butter
3 pounds sweet onions, coarsely chopped
1 cup half-and-half cream
1 ½ teaspoons salt
2 cups shredded Swiss cheese, divided

Steps:

  • Preheat oven to 350 degrees F (175 degrees C). Butter a 2-quart baking dish.
  • Bring water to a boil in a large saucepan, and sprinkle in the rice. Stir, reduce heat to low, and simmer the rice until it is half-cooked, about 5 minutes. Drain the rice, and set aside.
  • Melt the butter in a large skillet over medium heat, and cook and stir the onions until translucent but not browned, about 8 minutes. Mix the cooked onions and the butter from the skillet with the rice, and stir in the half-and-half, salt, and 1 3/4 cup of the Swiss cheese. Transfer the mixture to the prepared baking dish, and sprinkle the remaining 1/4 cup of Swiss cheese over the top.
  • Bake uncovered in the preheated oven until the rice is tender and the top is lightly browned, about 1 hour.

Nutrition Facts : Calories 322.9 calories, Carbohydrate 32.4 g, Cholesterol 51.3 mg, Fat 17.1 g, Fiber 3 g, Protein 11.4 g, SaturatedFat 10.8 g, Sodium 552.4 mg, Sugar 7.7 g

WALLA WALLA SWEET ONION-SWISS CHEESE CASSEROLE



Walla Walla Sweet Onion-Swiss Cheese Casserole image

A nice side dish for roast beef or ham. Use Walla Walla Sweets or Vidalia's for this. Regular yellow onions aren't sweet enough.

Provided by Outta Here

Categories     Cheese

Time 55m

Yield 6 serving(s)

Number Of Ingredients 9

1/4 cup unsalted butter
3 medium walla walla onions (or Vidalia's)
2 cups swiss cheese, grated and divided
1 cup saltine, crushed and divided
2 tablespoons unsalted butter
2 eggs
3/4 cup half-and-half
1 teaspoon salt
1/8 teaspoon fresh ground black pepper

Steps:

  • Peel and cut the onions in half and then quarter the halves. Slice the quarters in food processor fitted with slicing disc.
  • Preheat oven to 350 degrees.
  • Melt 1/4 cup butter in a large skillet and saute onions over medium heat until tender.
  • Place half the onion mixture into a 1 1/2-quart oven-proof casserole.
  • Sprinkle 1 cup of Swiss cheese and 1/2 cup cracker crumbs over onions. Repeat layers of onions and cheese.
  • Beat eggs with the half-and-half, salt and pepper. Pour evenly over layered contents of casserole.
  • Melt 2 tablespoons butter in skillet and stir in remaining cracker crumbs. Lightly brown over medium heat. Sprinkle browned crumbs over casserole.
  • Bake for 25 minutes.

Nutrition Facts : Calories 372.9, Fat 27.7, SaturatedFat 16.6, Cholesterol 136.8, Sodium 626.7, Carbohydrate 17.2, Fiber 1.3, Sugar 3.2, Protein 14.5

VIDALIA/SWEET ONION CHICKEN BREAST CASSEROLE



Vidalia/sweet Onion Chicken Breast Casserole image

Make and share this Vidalia/sweet Onion Chicken Breast Casserole recipe from Food.com.

Provided by Marlene.

Categories     One Dish Meal

Time 1h15m

Yield 2 serving(s)

Number Of Ingredients 6

2 boneless chicken breast halves
2 tablespoons vegetable oil
2 large potatoes, peeled and sliced
1 medium vidalia onions or 1 medium sweet onion, diced
1 can cream of mushroom soup, undiluted
paprika

Steps:

  • Wash chicken and pat dry.
  • Brown in the 2 Tbsp.
  • of oil and drain on paper towel.
  • Grease a 1 1/2 qt.
  • casserole dish.
  • Layer sliced potatoes on the bottom, the chopped onion next.
  • Pour soup over all (I added just a pinch of milk to my soup to make it pourable).
  • Place chicken breast on top, sprinkle with paprika.
  • Cover tightly with tinfoil and bake in a preheated 350* oven for 1 hour.
  • **This is the original recipe.
  • When I made it, I used cream of chicken soup because we don't like mushroom.
  • I also used bite sized pieces of stir fried chicken, but still cooked it for an hour.
  • I guess because it's covered in foil, it didn't dry out.
  • Was good enough for all 3 of us to like it!
  • *LOL*(that doesn't happen often) This would be a very easy recipe to double or triple!

SWEET ONION RICE CASSEROLE



Sweet Onion Rice Casserole image

We pared down this creamy onion casserole from Julie Rea of Battle Ground, Washington. It's warm, comforting and perfect for a cool evening. "Everyone who tries it, loves it," Julie says.

Provided by Taste of Home

Categories     Side Dishes

Time 1h

Yield 2 servings.

Number Of Ingredients 5

1/3 cup uncooked instant rice
2-1/2 cups chopped sweet onions
1 tablespoon butter
1/4 cup shredded Swiss cheese
1/4 cup half-and-half cream

Steps:

  • Cook rice according to package directions. Meanwhile, in a large skillet, saute onions in butter until tender. Stir in the cheese, cream and rice. , Transfer to a 2-cup baking dish coated with cooking spray. Bake, uncovered, at 325° for 45-55 minutes or until golden brown.

Nutrition Facts : Calories 277 calories, Fat 13g fat (8g saturated fat), Cholesterol 43mg cholesterol, Sodium 115mg sodium, Carbohydrate 32g carbohydrate (14g sugars, Fiber 4g fiber), Protein 8g protein.

SWEET ONION CASSEROLE



Sweet Onion Casserole image

Plan you next casserole dinner with this recipe - sweet onions baked with rice is a delicious one-dish meal.

Provided by By Betty Crocker Kitchens

Categories     Entree

Time 1h

Yield 8

Number Of Ingredients 10

3/4 cup uncooked regular long-grain white rice
1 1/2 cups water
2 tablespoons canola oil
3 3/4 cups chopped sweet onions
1 tablespoon all-purpose flour
1/2 teaspoon kosher (coarse) salt
1 cup fat-free (skim) milk
3 oz Gruyère cheese, shredded (3/4 cup)
1/4 cup grated Parmesan cheese
2 tablespoons chopped fresh parsley

Steps:

  • Heat oven to 350°F. Spray 11x7-inch (2-quart) glass baking dish with cooking spray. Cook rice in water as directed on package.
  • Meanwhile, in 12-inch skillet, heat oil over medium-high heat. Cook onions in oil 6 minutes, stirring occasionally, until tender. Sprinkle flour and salt over onions; stir until blended. Cook 1 minute, stirring constantly.
  • Gradually add milk, stirring with whisk until blended. Cook 3 minutes, stirring frequently, until mixture is thickened. Add cooked rice and Gruyère cheese; stir until cheese is melted. Spoon mixture into baking dish. Sprinkle with Parmesan cheese.
  • Bake uncovered 35 minutes or until bubbly and golden brown. Sprinkle with parsley.

Nutrition Facts : Calories 190, Carbohydrate 23 g, Fat 1/2, Fiber 2 g, Protein 7 g, SaturatedFat 3 g, ServingSize 1 Serving, Sodium 210 mg

SWEET ONION AND MUSHROOM CASSEROLE



Sweet Onion and Mushroom Casserole image

Make and share this Sweet Onion and Mushroom Casserole recipe from Food.com.

Provided by Virginia Chandler

Categories     Vegetable

Time 55m

Yield 4 serving(s)

Number Of Ingredients 8

1 lb vidalia onion, sliced and separated into rings (about 2 large)
4 ounces sliced fresh mushrooms
2 teaspoons butter
1 cup whipping cream
1 large egg
3/4 teaspoon salt
1/2 cup shredded sharp cheddar cheese
1/2 teaspoon paprika

Steps:

  • Saute onions and mushrooms in butter until just tender, about 10 minutes.
  • Place onions and mushrooms in a lightly greased 8 inch square baking dish.
  • Whisk together whipping cream,egg and salt.
  • Pour over onion and mushroom mixture.
  • Bake at 350°F for 25 minutes.
  • Add cheese and sprinkle with paprika.
  • Bake until cheese melts.

Tips:

  • Choose the right onions: Use sweet onions like Vidalia or Walla Walla for a milder flavor and tender texture.
  • Slice the onions thin: This will help them caramelize quickly and evenly.
  • Don't overcrowd the pan: Cook the onions in batches if necessary to avoid steaming them.
  • Cook the onions low and slow: This will help them caramelize without burning.
  • Use a heavy-bottomed pan: This will help distribute the heat evenly and prevent hot spots.
  • Season the onions well: Salt, pepper, and a touch of sugar will help bring out the flavor of the onions.
  • Add other vegetables: Feel free to add other vegetables to the casserole, such as bell peppers, mushrooms, or zucchini.
  • Use a variety of cheeses: A combination of cheeses, such as cheddar, Parmesan, and mozzarella, will give the casserole a rich and complex flavor.
  • Bake the casserole until golden brown: This will ensure that the casserole is cooked through and the cheese is melted and bubbly.
  • Let the casserole cool slightly before serving: This will help it set and make it easier to slice.

Conclusion:

Sweet onion casserole is a delicious and versatile dish that can be served as a side dish or main course. It's perfect for potlucks, picnics, and holiday gatherings. With its sweet and savory flavor, creamy texture, and cheesy topping, it's sure to be a hit with everyone who tries it. So next time you're looking for a new recipe to try, give sweet onion casserole a try. You won't be disappointed!

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