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Cheesy Chicken & Vegetable Casserole with Fluffy Potato Dough: A Comforting Classic

This Cheesy Chicken & Vegetable Casserole with Fluffy Potato Dough is the perfect comfort food, combining tender chicken, sautéed vegetables, and a creamy, cheesy potato topping. With a golden, crispy crust and a rich, savory filling, this dish is satisfying, hearty, and great for family dinners or meal prep.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 4 –6 servings
Course: Main Dish
Cuisine: European
Ingredients Method Notes

Ingredients
  

For the Chicken & Vegetable Filling:
  • 1 onion finely chopped
  • 3 tablespoons vegetable oil 20 ml
  • 250 grams chicken breast cubed
  • 1 green pepper sliced
  • 2 cloves garlic minced
  • 1 small carrot grated
  • 2 tablespoons tomato paste
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 teaspoon paprika
  • 1/2 teaspoon oregano
  • 1/4 cup 60 ml water or chicken broth
For the Fluffy Potato Dough:
  • 2 large potatoes boiled and mashed
  • 1/2 cup 60 grams all-purpose flour
  • 1 large egg
  • 2 tablespoons 30 grams melted butter
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/2 cup 50 grams grated cheese
For Topping:
  • 1/2 cup 50 grams grated cheese
  • Fresh parsley chopped (for garnish)

Method
 

Cook the Chicken & Vegetables:
  1. Heat vegetable oil in a pan over medium heat. Sauté the onion until soft.
  2. Add the cubed chicken and cook until lightly browned.
  3. Stir in garlic, green pepper, and grated carrot. Cook for another 2 minutes.
  4. Mix in tomato paste, salt, black pepper, paprika, and oregano.
  5. Pour in water or chicken broth and let it simmer for 5 minutes. Remove from heat.
Prepare the Fluffy Potato Dough:
  1. In a bowl, mix mashed potatoes, flour, egg, melted butter, salt, and black pepper.
  2. Stir in the grated cheese until combined.
Assemble the Casserole:
  1. Preheat oven to 375°F (190°C).
  2. Spread the chicken and vegetable mixture evenly in a greased baking dish.
  3. Spoon the potato dough on top and spread gently to cover the filling.
  4. Sprinkle grated cheese over the top.
Bake to Perfection:
  1. Bake for 25–30 minutes, or until golden brown and bubbly.
  2. Let cool slightly before serving. Garnish with fresh parsley.

Notes

  • For extra crispiness, broil the casserole for the last 2–3 minutes.
  • Swap chicken for turkey, beef, or mushrooms for a different variation.
  • Leftovers can be refrigerated for up to 3 days and reheated in the oven.
  • To make it ahead, assemble the casserole and store it in the fridge before baking.