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Root Vegetable Au Gratin

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Indulge in the comforting flavors of Root Vegetable Au Gratin, a delightful variation on the classic dish that combines Yukon gold potatoes, sweet potatoes, and beets into a creamy, cheesy masterpiece. This dish is perfect for family gatherings or festive occasions, offering vibrant colors and an irresistible blend of textures and tastes that will impress your guests. The rich cheese sauce, accented with a touch of dijon mustard, elevates the natural sweetness of the vegetables, providing a satisfying side that complements any meal.

Ingredients

Scale
  • 2 large Yukon potatoes
  • 2 medium sweet potatoes
  • 2 medium beets
  • 1 onion
  • 1/4 cup butter
  • 1/4 cup flour
  • 1 tbsp dijon mustard
  • 2 cups milk
  • 2 cups sharp cheddar cheese (shredded)
  • 1/2 cup parmesan cheese (grated)

Instructions

  1. Preheat your oven to 350°F (175°C).
  2. Peel and thinly slice the Yukon potatoes, sweet potatoes, beets, and onion.
  3. In a medium pot over medium heat, melt the butter. Stir in the flour and cook for about 1-2 minutes until lightly golden.
  4. Gradually add milk while stirring continuously until thickened. Mix in cheddar cheese and dijon mustard until melted.
  5. In a cast iron skillet or baking dish, layer the onions at the bottom, followed by alternating layers of sliced vegetables.
  6. Pour the cheese sauce evenly over the layered vegetables and sprinkle with parmesan cheese.
  7. Cover with foil and bake for 30 minutes; then remove foil and bake an additional 20-30 minutes until golden brown.

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