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Butternut Squash & Kale Casserole


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  • Author: Mia
  • Total Time: 1 hour 10 minutes
  • Yield: 6 servings
  • Diet: Vegetarian

Description

A hearty and wholesome vegetarian casserole made with roasted butternut squash, sautéed kale, caramelized onions, and a creamy cheese sauce. Perfect as a comforting main dish or a holiday side.


Ingredients

  • 1 medium butternut squash, peeled and cubed
  • 1 tablespoon olive oil
  • Salt and pepper, to taste
  • 1 tablespoon butter
  • 1 medium onion, thinly sliced
  • 3 cloves garlic, minced
  • 1 bunch kale, stems removed and chopped
  • 2 tablespoons all-purpose flour
  • 1 cup milk (or milk alternative)
  • 1/2 cup sour cream (or Greek yogurt)
  • 1 cup shredded cheddar cheese
  • 1/2 cup grated Parmesan cheese
  • 1/4 teaspoon ground nutmeg
  • 1/2 cup breadcrumbs (optional topping)
  • 1 tablespoon melted butter (if using breadcrumbs)

Instructions

  1. Preheat oven to 400°F (200°C).
  2. Toss cubed butternut squash with olive oil, salt, and pepper. Spread on a baking sheet and roast for 25–30 minutes, until tender and golden.
  3. Meanwhile, heat butter in a skillet over medium heat. Add sliced onions and cook slowly until caramelized, about 10–15 minutes.
  4. Add garlic and cook for 1–2 minutes. Then add chopped kale and sauté until wilted, about 3–4 minutes. Remove from heat.
  5. In a saucepan, melt butter and whisk in flour to form a roux. Cook for 1–2 minutes, then slowly whisk in milk until smooth and thickened.
  6. Stir in sour cream, cheddar cheese, Parmesan, nutmeg, salt, and pepper. Mix until cheese is melted and sauce is creamy.
  7. In a large bowl or baking dish, combine roasted squash, sautéed kale mixture, and cheese sauce. Mix until everything is coated evenly.
  8. If using breadcrumbs, mix with melted butter and sprinkle over the top.
  9. Bake at 375°F (190°C) for 20–25 minutes, until bubbly and golden on top.
  10. Let cool slightly before serving.

Notes

  • You can substitute Greek yogurt for sour cream for a tangier flavor.
  • Use gluten-free flour and breadcrumbs to make the dish gluten-free.
  • Add cooked quinoa or rice to make it a heartier main dish.
  • Great make-ahead dish—just assemble and refrigerate until ready to bake.
  • Prep Time: 20 minutes
  • Cook Time: 50 minutes
  • Category: Main Dish
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 serving
  • Calories: 280
  • Sugar: 6g
  • Sodium: 320mg
  • Fat: 17g
  • Saturated Fat: 8g
  • Unsaturated Fat: 7g
  • Trans Fat: 0g
  • Carbohydrates: 22g
  • Fiber: 4g
  • Protein: 9g
  • Cholesterol: 35mg