Oven-Baked Chicken Saute with Mashed Potatoes
Table of Contents
If you’re looking for a comforting family dinner that combines creamy mashed potatoes, flavorful chicken sauté, rich béchamel sauce, and melted cheese, this Oven-Baked Chicken Saute with Mashed Potatoes is the perfect choice. It’s hearty, satisfying, and ideal for weeknight dinners, family gatherings, or special occasions.

Why You’ll Love This Recipe
- Easy to prepare with simple everyday ingredients.
- Combines creamy, cheesy, and savory flavors in one dish.
- Perfect for feeding the whole family.
- Great make-ahead meal for busy days.
- Customizable with your favorite vegetables.
- Comfort food that everyone will enjoy.
Tools
To make this recipe, you’ll need:
- Large pot for boiling potatoes
- Potato masher or fork
- Large skillet or sauté pan
- Medium saucepan for béchamel sauce
- Wooden spoon
- Cutting board
- Sharp knife
- 9×13-inch baking dish (or similar)
- Cheese grater
- Oven
Ingredients & Prep
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
Preparation Tips
- Cut the chicken into bite-sized cubes for even cooking.
- Dice vegetables into similar sizes for a consistent texture.
- Use warm milk when making the béchamel sauce to reduce lumps.
- Grate the cheese ahead of time for easier assembly.
How to Make
Step 1: Prepare the Mashed Potatoes
Peel and boil the potatoes in salted water until fork-tender. Drain thoroughly and mash until smooth. Add butter, grated kashar cheese, and salt. Mix until creamy and set aside.

Step 2: Cook the Chicken Saute
Heat vegetable oil in a large skillet over medium heat. Add the chopped onion and cook until softened.
Add the diced chicken breast and sauté until it releases its juices and begins to brown.
Stir in the green peppers, red pepper, mushrooms, and tomatoes. Add tomato paste, tomato sauce, salt, black pepper, and chili flakes. Cook for another 8–10 minutes until the vegetables soften and the sauce thickens slightly.

Step 3: Make the Béchamel Sauce
Melt butter in a saucepan over medium heat. Add flour and whisk continuously for about 1 minute.
Gradually pour in the milk while whisking constantly. Continue cooking until the sauce becomes smooth and thick.
Season with salt and black pepper.

Step 4: Assemble the Casserole
Spread the mashed potatoes evenly into a baking dish.
Spoon the chicken saute mixture over the mashed potatoes.
Pour the béchamel sauce evenly across the top.
Sprinkle generously with grated kashar cheese.

Step 5: Bake
Preheat the oven to 180°C (356°F).
Bake for 20–25 minutes or until the cheese is fully melted and lightly golden on top.
Allow the casserole to rest for 5 minutes before serving.

Storage
Refrigerator
Store leftovers in an airtight container for up to 3 days.
Freezer
Freeze portions in freezer-safe containers for up to 2 months.
Reheating
Reheat in the oven at 180°C (356°F) until warmed through, or microwave individual servings for 2–3 minutes.
Similar Recipes
- Spicy Chicken Cheese and Onion Sandwiches
- Delicate Minced Meat and Kashar Pide Recipe; Easy Turkish Homemade Pide
- Crispy Chicken Caesar Flatbread
- Cheesy Garlic Potato Bites with 4 Simple Ingredients
Frequently Asked Questions
Can I use chicken thighs instead of chicken breast?
Yes. Boneless, skinless chicken thighs work wonderfully and often provide even more flavor and tenderness.
Can I prepare this recipe ahead of time?
Absolutely. Assemble the dish up to one day in advance, cover, and refrigerate. Bake when ready to serve.
What can I substitute for kashar cheese?
Mozzarella, cheddar, Monterey Jack, or any good melting cheese can be used.
Do I have to use mushrooms?
No. Mushrooms are optional and can be omitted without affecting the overall recipe.
Can I add more vegetables?
Yes. Corn, peas, carrots, zucchini, or spinach are excellent additions.
How do I prevent lumpy béchamel sauce?
Whisk continuously while gradually adding the milk. Using warm milk also helps create a smooth sauce.
Recipe

Oven-Baked Chicken Saute with Mashed Potatoes
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.
