Looking for a comforting and nutritious dish with a creamy, savory twist? This Sweet Potato-Cauliflower Gratin combines tender sweet potatoes and cauliflower with a rich Parmesan-infused sauce, topped with crispy sage leaves for a perfect finish. It's a delightful, healthier take on traditional gratin that's sure to be a hit at your dinner table.
Sweet Potato-Cauliflower Gratin
Course: SidesCuisine: American6
servings15
minutes50
minutes280
kcalSweet Potato-Cauliflower Gratin is a creamy, cheesy baked dish layering tender sweet potatoes and cauliflower with a rich sauce, creating a comforting and flavorful side.
Ingredients
2 tablespoons extra-virgin olive oil
3 tablespoons all-purpose flour
1 cup whole milk
1/4 cup plus 1 tablespoon freshly grated Parmesan
20 fresh sage leaves, plus 1 tablespoon chopped fresh sage
Coarse salt and freshly ground pepper to taste
2 pounds sweet potatoes, peeled and sliced 1/4 inch thick
1 head cauliflower, quartered and sliced 1/4-inch thick
Vegetable oil, for crisping sage
Directions
- Preheat the oven to 375°F (190°C). Grease a 9x13-inch baking dish with olive oil.
- In a medium saucepan, heat the olive oil over medium heat. Whisk in the flour and cook for 1-2 minutes. Gradually whisk in the milk until smooth, cooking for another 3-4 minutes until the sauce thickens.
- Stir in the chopped sage, 1/4 cup of Parmesan, salt, and pepper. Remove from heat and set aside.
- Arrange half of the sliced sweet potatoes and cauliflower in the prepared baking dish. Pour half of the Parmesan sauce over the vegetables. Repeat with the remaining vegetables and sauce, ensuring an even coating.
- Cover the dish with foil and bake for 35-40 minutes, until the vegetables are tender.
- Meanwhile, heat a small amount of vegetable oil in a skillet over medium heat. Fry the sage leaves until crispy, about 1 minute. Transfer to a paper towel to drain.
- Remove the gratin from the oven, uncover, and sprinkle with the remaining Parmesan. Bake uncovered for an additional 10 minutes until the top is golden.
- Garnish with crispy sage leaves and serve hot.
This Sweet Potato-Cauliflower Gratin is the ultimate comfort food with a healthy twist. The creamy Parmesan sauce and crispy sage complement the naturally sweet and earthy flavors of the vegetables. Perfect for family dinners or special occasions, this gratin is sure to impress!
