Homemade Chicken Alfredo Pasta Bake Recipe

If there’s one meal that instantly takes me back to the chaos of when my kids were little and I was just trying to survive dinnertime—it’s this. I used to reach for those jarred sauces out of pure desperation. But they always left me feeling a little... “meh.”
Then I figured out how to make this creamy, from-scratch Chicken Alfredo Pasta Bake, and everything changed.
It’s simple, rich, and family-approved. You get all the cozy vibes of a classic Alfredo, but in casserole form that you can make ahead, freeze, or serve straight from the oven on a chilly weeknight.
This is comfort food that loves you back.
Ingredients:
For the Pasta Bake:
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12 oz penne or rigatoni pasta
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2 cups cooked chicken breast, shredded or cubed
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1 1/2 cups shredded mozzarella cheese
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1/2 cup grated Parmesan
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Optional: 1 cup steamed broccoli or spinach (stir in before baking)
For the Alfredo Sauce:
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2 tbsp butter
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3 cloves garlic, minced
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2 tbsp flour
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1 1/2 cups milk (whole or 2%)
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1 cup heavy cream
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3/4 cup grated Parmesan
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1/2 tsp salt
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1/4 tsp black pepper
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Pinch of nutmeg (optional but amazing)
Instructions:
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Cook the pasta: Boil pasta until just al dente (don’t overcook—it’ll finish baking in the oven). Drain and set aside.
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Make the Alfredo sauce: In a saucepan, melt butter over medium heat. Add garlic and sauté 1 minute. Stir in flour and cook for another minute. Slowly whisk in milk and cream. Cook until slightly thickened (about 5 minutes). Stir in Parmesan, salt, pepper, and nutmeg. Remove from heat.
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Combine and assemble: In a large bowl, mix pasta, cooked chicken, and sauce. Stir in half the mozzarella and a bit more Parmesan.
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Bake: Pour mixture into a greased 9x13 baking dish. Top with remaining mozzarella and a sprinkle of Parmesan. Bake at 375°F for 20–25 minutes, until bubbly and golden.
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Serve: Let cool for 5–10 minutes, then dig in. Serve with a crisp green salad or roasted veggies.
Sarah’s Tips & Swaps:
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Short on time? Use rotisserie chicken and pre-shredded cheese to speed it up.
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Add veggies: Stir in frozen peas, sautéed mushrooms, or chopped spinach to boost the nutrition.
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Make ahead: Assemble and refrigerate for up to 2 days or freeze unbaked. Thaw overnight before baking.
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Dairy-free option: Use a plant-based butter, milk, and cheese — and thicken with cornstarch instead of flour.
Flavorful Conclusion:
This Chicken Alfredo Bake is pure comfort — cheesy, creamy, and the kind of dish that makes your kitchen smell like a hug. Whether it’s a busy Tuesday or a slow Sunday, it’s the kind of meal that brings everyone to the table with full hearts (and full bellies).
Nutrition (Per Serving – serves 6):
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Calories: 510
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Protein: 30g
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Carbohydrates: 38g
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Fat: 27g
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Fiber: 2g
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Sugar: 4g
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Sodium: 540mg
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