There’s nothing quite like a warm, cheesy casserole straight out of the oven on a chilly evening. For those following a low-carb lifestyle, this Keto Chicken Alfredo Broccoli Bake is the perfect answer to your comfort food cravings. I still remember the first time I made this dish after starting keto—it was creamy, rich, and satisfying, but without the carb-heavy pasta I thought I’d miss. Instead, tender chicken and crisp broccoli became the stars, all coated in a luscious Alfredo sauce and topped with melted cheese. This recipe proves that keto eating doesn’t mean sacrificing flavor or indulgence.
What Is Keto Chicken Alfredo Broccoli Bake
Keto Chicken Alfredo Broccoli Bake is a hearty casserole that layers juicy chicken, fresh broccoli florets, and a homemade low-carb Alfredo sauce, all baked under a blanket of melted mozzarella and Parmesan cheese. It’s a grain-free, pasta-free take on classic chicken Alfredo pasta, reimagined for a ketogenic lifestyle. This dish is high in protein, packed with healthy fats, and completely satisfying.
Why You’ll Fall in Love with This Recipe
- Low-carb but filling: No pasta needed—this bake is hearty enough to satisfy.
- Perfect for meal prep: Stores and reheats beautifully.
- Family-friendly: Even non-keto eaters love it.
- One-pan simplicity: Easy to prepare and cleanup.
- Cheesy indulgence: Comfort food without guilt.
How Does It Taste?
This dish is rich, creamy, and savory. The Alfredo sauce is buttery and garlicky with a hint of nutty Parmesan, perfectly complementing the juicy chicken. The broccoli adds freshness and texture, while the melted mozzarella creates gooey, golden layers of cheesy deliciousness. It tastes just as indulgent as a restaurant-style Alfredo pasta—only lighter on carbs.
Health & Ingredient Benefits
- Chicken provides lean protein to keep you full.
- Broccoli is loaded with fiber, vitamin C, and antioxidants.
- Heavy cream and cheese deliver healthy fats for keto energy.
- Garlic offers immune-boosting and anti-inflammatory properties.
This bake is a nutrient-rich option that supports keto goals while still tasting indulgent.
Ingredients You’ll Need
For the Bake:
- 3 cups cooked chicken breast or thighs, diced or shredded
- 4 cups broccoli florets (fresh or lightly steamed)
- 1 ½ cups shredded mozzarella cheese
- ½ cup grated Parmesan cheese
For the Alfredo Sauce:
- 3 tbsp unsalted butter
- 3 cloves garlic, minced
- 1 ½ cups heavy cream
- 1 cup grated Parmesan cheese
- ½ tsp Italian seasoning
- Salt and black pepper, to taste
Optional Garnish:
- Fresh parsley, chopped
- Extra Parmesan for topping
Tools You’ll Need
- Large skillet or saucepan
- Mixing spoon or whisk
- 9×13-inch baking dish (or oven-safe skillet)
- Knife and cutting board
- Cheese grater
Optional Substitutions & Additions
- Use cauliflower florets instead of broccoli for variety.
- Add mushrooms or zucchini for extra veggies.
- Swap mozzarella for provolone or gouda for a different flavor.
- Spice it up with red pepper flakes or a dash of cayenne.
How to Make
- Preheat oven to 375°F (190°C). Grease a 9×13-inch baking dish.
- Make Alfredo sauce: In a skillet, melt butter and sauté garlic until fragrant. Stir in heavy cream and bring to a gentle simmer. Whisk in Parmesan, Italian seasoning, salt, and pepper until smooth and thickened.
- Assemble: Place chicken and broccoli in the baking dish. Pour Alfredo sauce evenly over the top. Sprinkle with mozzarella and Parmesan.
- Bake: Bake uncovered for 20–25 minutes, until bubbly and golden brown.
- Serve: Garnish with parsley and extra Parmesan if desired.

What to Serve With
- A crisp Caesar salad for a refreshing side.
- Zucchini noodles or spaghetti squash for extra bulk.
- A glass of sparkling water with lemon to cut through the richness.
Tips for Success
- Don’t overcook broccoli before baking—it should be slightly crisp to avoid mushiness.
- Use rotisserie chicken for a time-saving shortcut.
- Let the casserole rest for 5 minutes before serving to thicken.
- Grate your own cheese for the smoothest melt.
Common Mistakes to Avoid
- Using watery vegetables: Over-steamed broccoli can water down the sauce.
- Skipping seasoning: Alfredo sauce needs salt and pepper to shine.
- Using pre-shredded cheese: It contains anti-caking agents that prevent smooth melting.
- Overbaking: This can dry out the chicken and sauce.
How to Store & Reheat
- Store leftovers in an airtight container in the fridge for up to 4 days.
- Freeze individual portions for up to 2 months.
- Reheat in the oven at 350°F (175°C) until warmed through, or microwave in short bursts.
Frequently Asked Questions
Can I use raw chicken instead of cooked?
Yes, but you’ll need to dice it and cook it in the skillet before baking.
Can I make this dairy-free?
You can substitute with coconut cream and dairy-free cheese alternatives, though flavor will differ.
Is this bake gluten-free?
Yes! All ingredients are naturally gluten-free.
Can I prepare it ahead of time?
Yes—assemble the dish up to 24 hours ahead, refrigerate, and bake before serving.
Nutritional Info (approximate per serving)
- Calories: 420
- Protein: 32g
- Fat: 30g
- Saturated Fat: 15g
- Carbohydrates: 6g
- Fiber: 2g
- Net Carbs: 4g
- Sodium: 540mg
Conclusion
Keto Chicken Alfredo Broccoli Bake is proof that low-carb eating doesn’t mean giving up comfort food. It’s creamy, cheesy, filling, and packed with flavor—everything you want in a cozy casserole. Whether you’re cooking for your family, meal prepping for the week, or hosting friends, this dish is sure to become a staple in your keto recipe collection.
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Keto Chicken Alfredo Broccoli Bake: A Low-Carb Comfort Food Classic
- Total Time: 40 minutes
- Yield: 6 servings 1x
Description
A creamy, cheesy Keto Chicken Alfredo Broccoli Bake made with juicy chicken, fresh broccoli, and a rich low-carb Alfredo sauce, baked to golden perfection.
Ingredients
Bake:
3 cups cooked chicken breast or thighs, diced or shredded
4 cups broccoli florets (fresh or lightly steamed)
1 ½ cups shredded mozzarella cheese
½ cup grated Parmesan cheese
Alfredo Sauce:
3 tbsp unsalted butter
3 cloves garlic, minced
1 ½ cups heavy cream
1 cup grated Parmesan cheese
½ tsp Italian seasoning
Salt and black pepper, to taste
Optional Garnish:
Fresh parsley, chopped
Extra Parmesan cheese
Instructions
1. Preheat oven to 375°F (190°C). Grease a 9×13-inch baking dish.
2. In a skillet, melt butter and sauté garlic until fragrant. Stir in heavy cream and bring to a gentle simmer. Whisk in Parmesan, Italian seasoning, salt, and pepper until smooth and thickened.
3. Place chicken and broccoli in the baking dish. Pour Alfredo sauce evenly over the top. Sprinkle with mozzarella and Parmesan.
4. Bake uncovered for 20–25 minutes, until bubbly and golden brown.
5. Garnish with parsley and extra Parmesan before serving.
Notes
Do not overcook broccoli before baking to prevent mushiness.
Use freshly grated cheese for the best texture and flavor.
Can be made ahead and refrigerated before baking.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Dinner
Keywords: keto chicken alfredo bake, broccoli chicken alfredo casserole, low carb chicken broccoli casserole, creamy keto casserole, keto comfort food