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Oven-Baked Chicken Saute with Mashed Potatoes

A comforting baked casserole featuring creamy mashed potatoes, flavorful chicken sauté, rich béchamel sauce, and melted kashar cheese.
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Course Dinner
Cuisine Mediterranean
Servings 6 servings
Calories 450 kcal

Equipment

  • Large pot
  • Potato masher
  • Skillet
  • Saucepan
  • Whisk
  • Baking dish
  • Knife and cutting board

Ingredients
  

For the Mashed Potatoes

  • 5 medium potatoes
  • 1 tablespoon butter
  • 50 g kashar cheese grated
  • Salt to taste

For the Chicken Saute

  • 1 whole chicken breast diced
  • 1 onion chopped
  • 5 –6 mushrooms sliced (optional)
  • 3 green peppers chopped
  • 2 tomatoes diced or tomato puree
  • 1 red pepper chopped
  • 1 tablespoon tomato paste
  • 1 small glass tomato sauce
  • Salt to taste
  • Black pepper to taste
  • Chili flakes to taste
  • 2 tablespoons vegetable oil

For the Béchamel Sauce

  • 1 tablespoon butter
  • 2 tablespoons flour
  • 2 cups milk
  • Salt to taste
  • Pinch of black pepper

For the Topping

  • Grated kashar cheese

Instructions
 

  • Boil the potatoes until tender. Peel and mash until smooth.
  • Add butter, grated kashar cheese, and salt. Mix well and set aside.
  • Heat oil in a skillet and sauté the chopped onion until soft.
  • Add diced chicken and cook until lightly browned.
  • Stir in mushrooms, green peppers, red pepper, tomatoes, tomato paste, tomato sauce, and seasonings. Cook for 8–10 minutes.
  • For the béchamel sauce, melt butter in a saucepan. Add flour and cook for 1 minute.
  • Gradually whisk in milk and cook until thickened. Season with salt and black pepper.
  • Spread mashed potatoes evenly in a baking dish.
  • Top with the chicken sauté mixture.
  • Pour the béchamel sauce over the chicken layer.
  • Sprinkle generously with grated kashar cheese.
  • Bake at 180°C (356°F) for 20–25 minutes or until golden and bubbly.
  • Let rest for 5 minutes before serving.

Notes

  • Mozzarella or cheddar can be used instead of kashar cheese.
  • Add peas, corn, or carrots for extra vegetables.
  • Assemble ahead and refrigerate until ready to bake.
Keyword chicken bake, béchamel chicken casserole, chicken casserole, mashed potato casserole, Oven-Baked Chicken Saute with Mashed Potatoes