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Creamy winter vegetable casserole baked golden in a dish, filled with seasonal vegetables and topped with melted cheese.

Creamy Winter Vegetable Casserole Recipe – Easy Vegetarian Comfort Food Dinner Idea

This creamy winter vegetable casserole is the perfect cozy dish for cold nights! Packed with seasonal vegetables, baked in a rich, creamy sauce, and topped with golden melted cheese, it’s a hearty vegetarian comfort food that’s simple to make and ideal for family dinners or holiday gatherings.
Prep Time 25 minutes
Cook Time 35 minutes
Total Time 1 hour
Course Main Course, Side Dish
Cuisine British/European Comfort Food, Vegetarian-friendly
Servings 8
Calories 320 kcal

Equipment

  • Large baking sheet (for roasting vegetables)
  • Saucepan (for sauce)
  • Whisk
  • Casserole dish (9x13-inch)
  • Wooden spoon
  • Oven

Ingredients
  

  • 2 carrots, chopped
  • 2 parsnips, chopped
  • 2 medium potatoes, diced
  • 1 cup cauliflower florets
  • 1 cup broccoli florets
  • 2 tbsp olive oil
  • 3 tbsp butter (or vegan alternative)
  • 3 tbsp flour (or cornstarch for gluten-free)
  • 2 cups milk (or plant-based milk)
  • 1 cup shredded cheese (cheddar, Gruyère, or vegan cheese)
  • 1 tsp thyme
  • 1 tsp rosemary
  • ½ cup breadcrumbs (optional topping)
  • Salt & pepper to taste
  • Fresh parsley for garnish

Instructions
 

  • Prep Vegetables: Chop vegetables evenly.
  • Roast Vegetables: Toss with olive oil, salt, and pepper. Roast at 200°C (400°F) for 20–25 minutes until lightly caramelized.
  • Make Sauce: Melt butter in saucepan. Whisk in flour to form a roux. Gradually add milk, whisking until smooth. Stir in cheese and herbs. Simmer until thickened. Taste and adjust seasoning.
  • Assemble Casserole: Place roasted vegetables in casserole dish. Pour sauce evenly over them.
  • Add Topping: Sprinkle breadcrumbs or extra cheese.
  • Bake: Bake at 180°C (350°F) for 25–30 minutes until golden and bubbling.
  • Rest & Serve: Let rest 10 minutes before serving. Garnish with parsley.

Notes

  •  Add mushrooms for earthy depth or sweet potatoes for natural sweetness.
  •  Vegan option: use cashew cream or coconut milk with dairy-free cheese.
  •  Gluten-free: thicken sauce with cornstarch instead of flour.
  •  Add lentils or beans for extra protein.
  •  Assemble ahead and bake fresh for convenience.
Keyword creamy vegetable bake, festive casserole, Holiday side dish, vegetarian comfort food, winter casserole