High Protein Keto Garlic Mushroom Chicken Casserole

Description

The High Protein Keto Garlic Mushroom Chicken Casserole is a creamy, cheesy, low-carb dinner made with tender chicken, buttery mushrooms, garlic, cream cheese, and melted mozzarella. It is perfect for keto meal prep because it is filling, rich in protein, and keeps carbs low without sacrificing flavor.

Ingredients

2 large cooked chicken breasts, shredded or diced
2 cups sliced mushrooms
3 garlic cloves, minced
2 tbsp butter
1 tbsp olive oil
½ cup cream cheese
1 cup heavy cream
1 cup shredded mozzarella cheese
½ cup shredded cheddar cheese
¼ cup parmesan cheese
½ tsp salt
½ tsp black pepper
½ tsp paprika
½ tsp Italian seasoning
¼ tsp chili flakes, optional
1 cup broccoli florets, optional
Fresh parsley for garnish

Instructions

Preheat your oven to 375°F / 190°C. Grease a medium baking dish lightly with butter or oil.

Heat butter and olive oil in a pan over medium heat. Add sliced mushrooms and cook for 5–6 minutes until soft and slightly golden. Add minced garlic and cook for 30 seconds until fragrant.

Lower the heat and add cream cheese and heavy cream. Stir until the mixture becomes smooth and creamy. Add salt, black pepper, paprika, Italian seasoning, and chilli flakes. Mix well.

Add the cooked shredded chicken and broccoli, if using. Stir until everything is coated in the creamy garlic mushroom sauce.

Transfer the mixture into the baking dish. Top with mozzarella, cheddar, and parmesan cheese. Bake for 18–22 minutes, or until the cheese is melted, bubbly, and lightly golden. Garnish with parsley and serve warm.

Servings

This recipe makes 4 servings.

Nutritional Info

Approximate nutrition per serving:

Calories: 430–500
Protein: 38–45g
Fat: 28–35g
Net Carbs: 5–7g
Fiber: 1–2g

Benefits

This casserole is high in protein, which helps support muscle repair and keeps you full for longer. It is low in carbohydrates, making it suitable for a keto or low-carb lifestyle. Mushrooms add flavour, minerals, and a meaty texture without adding many carbs. The creamy cheese sauce makes the dish satisfying, so it can reduce cravings for high-carb comfort food.

Notes

Use cooked chicken to save time. Rotisserie chicken works well, but choose one without sugary seasoning. Do not overcook the garlic because burnt garlic can make the sauce bitter. For a thicker casserole, add extra cheese or reduce the cream slightly.

Tips

For more protein, add extra chicken or cooked turkey. For more vegetables, add spinach, zucchini, cauliflower, or broccoli. Let the casserole rest for 5 minutes after baking so the sauce thickens. Store leftovers in an airtight container in the fridge for up to 3 days.