Welcome to the ultimate comfort food mashup, the Smashed Onion Mac And Cheese Casserole! This dish is a symphony of flavors, blending the rich creaminess of mac and cheese with the sweet, caramelized goodness of smashed onions. Prepare to be swept away by the cozy, indulgent experience that awaits you in every bite.
Why You’ll Love This Smashed Onion Mac And Cheese Casserole
Imagine sinking your fork into a golden, crispy topping, only to be greeted by a velvety, melty cheese sauce that envelops perfectly cooked macaroni. The zesty, bright flavors of the smashed onions add a delightful complexity, creating a truly craveable and satisfying dish. This casserole is the ultimate comfort food, perfect for those cozy nights when you need a hearty, warm hug in the form of a meal.
Ingredients
This recipe calls for a few simple, but essential ingredients to create the ultimate Smashed Onion Mac And Cheese Casserole. You’ll need elbow macaroni, butter, all-purpose flour, milk, sharp cheddar cheese, parmesan cheese, and a sweet onion.
- 8 oz (225g) – elbow macaroni
- 4 tbsp (60g) – unsalted butter
- 1⁄4 cup (30g) – all-purpose flour
- 2 cups (480ml) – milk
- 2 cups (200g) – shredded sharp cheddar cheese
- 1 cup (100g) – grated parmesan cheese
- 1 large (200g) – sweet onion
Ingredient Substitutions
- Cheese: Try using gruyère or gouda for a unique twist on the classic.
- Pasta: Experiment with different shapes like cavatappi or penne for a fun variation.
How to Make Smashed Onion Mac And Cheese Casserole
Let’s walk through the simple steps to create this indulgent Smashed Onion Mac And Cheese Casserole.
Step 1: Prep Work
Begin by preheating your oven to 375°F (190°C). Bring a large pot of salted water to a boil and cook the elbow macaroni according to the package instructions, until al dente. Drain the pasta and set it aside.
Step 2: Main Cooking Process
In a large saucepan, melt the butter over medium heat. Add the all-purpose flour and whisk continuously for 2-3 minutes, creating a roux. Gradually pour in the milk, whisking constantly, until the sauce thickens. Remove the pan from the heat and stir in the shredded cheddar and parmesan cheeses until the cheese is melted and the sauce is smooth.
Step 3: Final Steps/Assembly
Slice the sweet onion and place it in a single layer on a baking sheet. Bake the onions for 20-25 minutes, until they are soft and caramelized. Remove the onions from the oven and gently smash them with a fork or the back of a spoon. In a large mixing bowl, combine the cooked macaroni, the creamy cheese sauce, and the smashed onions. Transfer the mixture to a greased 9×13-inch baking dish.
Step 4: Finishing Touches
Top the casserole with a generous sprinkle of additional shredded cheddar cheese. Bake the Smashed Onion Mac And Cheese Casserole for 20-25 minutes, or until the top is golden brown and bubbly.
Recipe Variations & Tips
- Crispy Topping: Add a layer of panko breadcrumbs or crushed crackers before baking for an extra crispy topping.
- Color and Flavor: Incorporate roasted red peppers or a pinch of smoked paprika for a pop of color and flavor.
- Indulgent Add-Ins: Consider adding crispy bacon bits or sautéed mushrooms for an even more indulgent dish.
- Dietary Swap: Use low-fat or non-fat milk and cheese to lighten up the casserole.
Serving & Storage
Serve with: a fresh green salad or crusty bread.
Storage: Leftovers can be stored in an airtight container in the refrigerator for up to 4 days.
Reheat: Reheat individual portions in the microwave or oven until heated through.
Make-Ahead: You can assemble the casserole and refrigerate it, unbaked, for up to 2 days. When ready to serve, simply bake it as directed.
Nutrition Information
This Smashed Onion Mac And Cheese Casserole is a comforting and indulgent dish, but it can also be enjoyed as part of a balanced diet. Each serving provides a satisfying dose of protein, carbohydrates, and essential nutrients. Of course, as with any comfort food, it’s important to enjoy it in moderation as part of an overall healthy lifestyle.
- Serving Size: 1⁄8 of the casserole
- Calories: 510 kcal
- Protein: 22 g
- Carbs: 41 g
- Fat: 29 g
- Sodium: 730 mg
Frequently Asked Questions
Can I make this casserole ahead of time?
Absolutely! You can assemble the casserole and refrigerate it, unbaked, for up to 2 days. When ready to serve, simply bake it as directed.
Can I freeze this mac and cheese casserole?
Yes, you can freeze the baked casserole for up to 3 months. To reheat, thaw it in the refrigerator overnight and then bake at 375°F (190°C) until heated through.
How can I make this dish more healthy?
To lighten up the casserole, you can use low-fat or non-fat milk and cheese. You can also try substituting whole wheat or gluten-free pasta.
Can I use a different type of onion?
While sweet onions work best for this recipe, you can also experiment with shallots or red onions for a slightly different flavor profile.
How can I make this dish extra cheesy?
For an even cheesier experience, feel free to increase the amount of cheddar and parmesan cheese in the sauce, or try adding other melty cheeses like gruyère or mozzarella.
Try These Next
- creamy pumpkin mac and cheese casserole for comfort
- bacon mac and cheese casserole with a crunchy topping
- smoky bacon mac and cheese casserole delight
Smashed Onion Mac And Cheese Casserole
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 6 servings
- Category: 🍲 Comfort Classics & Casseroles
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Description
This Smashed Onion Mac and Cheese Casserole is a creamy, cheesy delight with the rich flavor of caramelized onions. Perfect for family gatherings or a comforting weeknight dinner!
Ingredients
– 8 oz elbow macaroni
– 2 tbsp olive oil
– 2 large onions, sliced
– 3 cups shredded sharp cheddar cheese
– 1 cup grated Parmesan cheese
– 4 cups milk
– 1/2 cup all-purpose flour
– 1 tsp garlic powder
– 1 tsp onion powder
– 1/2 tsp smoked paprika
– Salt and pepper to taste
– 1/2 cup breadcrumbs
– Fresh parsley for garnish
Instructions
1. 1. Preheat your oven to 350°F (175°C).
2. 2. Cook the macaroni according to package instructions until al dente. Drain and set aside.
3. 3. In a large skillet, heat olive oil over medium heat. Add the sliced onions and cook until caramelized, about 15-20 minutes.
4. 4. In a large saucepan, whisk together the milk and flour over medium heat until smooth. Gradually add in the cheddar cheese and Parmesan, stirring until melted and creamy.
5. 5. Stir in the garlic powder, onion powder, smoked paprika, salt, and pepper.
6. 6. Combine the cooked macaroni with the cheese sauce and caramelized onions.
7. 7. Transfer the mixture to a greased casserole dish. Top with breadcrumbs.
8. 8. Bake for 25-30 minutes or until the top is golden and bubbly.
9. 9. Garnish with fresh parsley before serving.
Notes
For added flavor, you can mix in cooked bacon or sautéed mushrooms. This dish is best served fresh but can be stored in the fridge for up to 3 days.
Nutrition
- Serving Size: 1 cup
- Calories: 450 kcal
- Sugar: 4g
- Sodium: 700mg
- Fat: 24g
- Saturated Fat: 12g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 42g
- Fiber: 2g
- Protein: 20g
- Cholesterol: 50mg
Keywords: mac and cheese, casserole, comfort food