Delicious Mashed Potato Rutabaga and Parsnip Casserole with Caramelized Onions

This Mashed Potato Rutabaga and Parsnip Casserole with Caramelized Onions is a delicious and flavorful side dish that will elevate any meal. The combination of creamy mashed potatoes, earthy rutabaga, sweet parsnips, and caramelized onions creates a comforting and indulgent dish. Perfect for Thanksgiving or any other special occasion, this casserole is a crowd-pleaser.

Ingredients

• 3 pounds potatoes, peeled and cut into chunks
• 1 pound rutabaga, peeled and cut into chunks
• 1 pound parsnips, peeled and cut into chunks
• 4 tablespoons unsalted butter, divided
• 1 large yellow onion, thinly sliced
• 2 cloves garlic, minced
• 1 cup whole milk
• 1/2 cup sour cream
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1/4 teaspoon nutmeg
• 1/4 cup grated Parmesan cheese

Directions

1. Preheat the oven to 375°F (190°C).
2. In a large pot, bring water to a boil and cook the potatoes, rutabaga, and parsnips until tender, about 20 minutes. Drain and return to the pot.
3. In a separate skillet, melt 2 tablespoons of butter over medium heat. Add the sliced onions and cook until caramelized, stirring occasionally, for about 15-20 minutes. Set aside.
4. To the pot with the cooked vegetables, add the remaining 2 tablespoons of butter, minced garlic, milk, sour cream, salt, black pepper, and nutmeg.
5. Using a potato masher or an electric mixer, mash the vegetables until smooth and creamy.
6. Fold in the caramelized onions and grated Parmesan cheese, reserving a small amount of both for topping.
7. Transfer the mashed mixture to a greased casserole dish and sprinkle the reserved onions and cheese on top.
8. Bake in the preheated oven for 25-30 minutes or until the top is golden and bubbly.
9. Serve hot as a savory side dish.
10. Enjoy!

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