If you’re looking for a low-carb dinner that feels indulgent yet fits perfectly into your keto lifestyle, this keto pesto chicken casserole is a must-try. It combines tender chicken, creamy pesto, tangy feta cheese, and briny olives into one satisfying dish. The flavors are bold but balanced, making it perfect for weeknight meals or even special occasions. Best of all, it’s simple to prepare and requires minimal cleanup. Whether you’re new to keto or just want something delicious and easy, this recipe delivers comfort and flavor in every bite.

Why You’ll Love This Recipe

This casserole is everything you want in a keto-friendly meal, rich, cheesy, and full of flavor without unnecessary carbs. It’s incredibly easy to prepare, making it perfect for busy days when you don’t want to spend hours in the kitchen. The pesto adds a fresh, herby taste, while feta and olives bring a Mediterranean twist. It’s also highly customizable, so you can adjust ingredients based on your taste. Plus, it stores well, making it ideal for meal prep and leftovers that taste just as good the next day.

How To Make

Making this keto pesto chicken casserole is simple and beginner-friendly. You start by seasoning and cooking the chicken until tender. Then, mix it with pesto sauce, feta cheese, and olives for a flavorful base. Everything is transferred into a baking dish and topped with more cheese for a golden, bubbly finish. Bake until perfectly cooked and slightly crispy on top. The entire process is easy and doesn’t require advanced cooking skills, making it a reliable go-to recipe for anyone.

What’s the Best Way to Cook

The best way to cook this casserole is in the oven, as baking allows all the flavors to blend beautifully. Use a preheated oven at around 180°C or 350°F for even cooking. Baking also helps create a slightly crispy top layer while keeping the inside moist and creamy. Avoid overcooking the chicken beforehand, as it will continue cooking in the oven. Using a glass or ceramic baking dish helps ensure even heat distribution.

What to Serve With

This dish pairs wonderfully with light, low-carb sides. You can serve it with a fresh green salad, sautéed vegetables, or roasted broccoli. Cauliflower rice is also a great option if you want something more filling while staying keto-friendly. For added freshness, a simple cucumber salad works well. These sides balance the richness of the casserole and create a complete, satisfying meal.

Watch Out for These Mistakes While Cooking

Avoid using too much pesto, as it can overpower the dish and make it oily. Make sure the chicken is not overcooked before baking, or it may turn dry. Don’t skip draining excess moisture from ingredients like olives or cooked chicken, as it can make the casserole watery. Also, use good-quality feta cheese for better flavor. Keep an eye on baking time because overbaking can dry out the dish.

Can You Freeze This

Yes, this casserole freezes very well. Allow it to cool completely before transferring it to an airtight container. You can freeze it for up to two to three months. When ready to eat, thaw it in the refrigerator overnight and reheat in the oven until warmed through. This makes it a great option for meal prep.

Storage Tips

Store leftover casserole in an airtight container in the refrigerator for up to three to four days. Reheat in the oven or microwave before serving. If reheating in the oven, cover it with foil to prevent drying out. Avoid leaving it at room temperature for too long to maintain freshness and safety.

Directions

Preheat the oven, cook the chicken, mix with pesto and toppings, transfer to a baking dish, and bake until golden and bubbly. Let it rest briefly before serving for the best texture and flavor.

Estimated Nutrition

Calories 350 to 400 kcal per serving
Protein 30g
Fat 25g
Carbohydrates 5 to 7g
Fiber 1 to 2g

Ingredients

2 cups cooked chicken shredded or cubed
Half cup pesto sauce
Half cup crumbled feta cheese
Half cup sliced olives
1 cup shredded mozzarella cheese
2 tablespoons olive oil
Salt and pepper to taste
Optional garlic or herbs for extra flavor

Step 1

Start by preheating your oven to 180°C or 350°F. While the oven heats, prepare your chicken by cooking it in a pan with a little olive oil, salt, and pepper. Cook until the chicken is tender and fully done but not overcooked. Once ready, allow it to cool slightly before cutting or shredding into bite-sized pieces. This step ensures the chicken remains juicy and absorbs flavors better.

Step 2

In a large mixing bowl, combine the cooked chicken with pesto sauce. Mix well so that every piece of chicken is evenly coated. Add sliced olives and crumbled feta cheese, then gently stir everything together. This creates a rich, flavorful base with a perfect balance of creamy, tangy, and savory taste.

Step 3

Transfer the mixture into a greased baking dish and spread it evenly. Sprinkle shredded mozzarella cheese over the top to create a delicious cheesy layer. Make sure the surface is evenly covered so it melts properly while baking. This top layer will turn golden and slightly crispy, adding texture and flavor.

Step 4

Place the baking dish in the preheated oven and bake for about 20 to 25 minutes or until the cheese is melted and bubbly with a light golden color. Once done, remove from the oven and let it rest for a few minutes before serving. This resting time helps the casserole set properly and improves taste and texture.