Keto Alfredo Bake With Broccoli – Creamy, Comforting, and Low-Carb

This Keto Alfredo Bake with Broccoli is the kind of weeknight dinner that feels special without the fuss. It’s rich, cheesy, and comforting, yet still fits your low-carb goals. Think tender broccoli, juicy chicken (or your favorite protein), and a silky Alfredo sauce baked under a golden blanket of cheese.

Everything happens in one dish with simple steps. It’s the kind of recipe you’ll keep on repeat because it actually makes eating keto feel easy.

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Keto Alfredo Bake With Broccoli – Creamy, Comforting, and Low-Carb

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Prep Time 15 minutes mins

Cook Time 25 minutes mins

Total Time 40 minutes mins

Servings: 6 servings

Ingredients Method

Ingredients

  

• 4 cups broccoli florets (fresh or frozen, cut into bite-sized pieces)
• 1 1/2 pounds cooked chicken, shredded or cubed (rotisserie chicken works well)
• 2 tablespoons butter
• 3 cloves garlic, minced
• 1 1/2 cups heavy cream
• 4 ounces cream cheese, softened and cubed
• 1 cup grated Parmesan cheese (freshly grated if possible)
• 1 1/2 cups shredded mozzarella, divided
• 1/2 teaspoon onion powder
• 1/2 teaspoon Italian seasoning (or a mix of dried basil and oregano)
• 1/4 teaspoon crushed red pepper flakes (optional, for a little heat)
• Salt and black pepper, to taste
• 2 tablespoons chopped parsley (optional, for garnish)
• Olive oil spray or a little butter, for greasing the baking dish

Method

 

1. Preheat and prep: Heat your oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish with olive oil or butter.
2. Par-cook the broccoli: Steam or microwave the broccoli until just tender but still crisp, about 3–4 minutes. Drain well and pat dry with paper towels to prevent a watery bake.
3. Sauté the aromatics: In a large skillet over medium heat, melt the butter. Add the minced garlic and cook 30–60 seconds until fragrant. Do not brown.
4. Make the Alfredo base: Pour in the heavy cream and bring to a gentle simmer. Add the cream cheese cubes and whisk until smooth and thickened, 2–3 minutes.
5. Season and add cheeses: Stir in Parmesan, onion powder, Italian seasoning, red pepper flakes (if using), and a good pinch of salt and pepper. Simmer 1–2 minutes until the sauce coats a spoon. Taste and adjust seasoning.
6. Combine in the dish: Add the cooked chicken and broccoli to the baking dish. Pour the Alfredo sauce over the top and toss gently to coat everything evenly.
7. Top with cheese: Sprinkle 1 cup of mozzarella over the mixture. Fold lightly to incorporate, then scatter the remaining 1/2 cup on top for a melty crust.
8. Bake: Place the dish on the middle rack and bake 18–22 minutes, until bubbly around the edges and lightly golden on top.
9. Rest and garnish: Let it rest 5 minutes so the sauce sets. Finish with chopped parsley and a crack of black pepper before serving.

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Why This Recipe Works

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• Low-carb but satisfying: Swapping pasta for broccoli keeps carbs down while still giving you that cozy casserole vibe.
• High in protein and fat: The combination of chicken, cream, butter, and cheese helps you stay full and satisfied.
• Simple pantry ingredients: Nothing fancy—just everyday items that deliver big flavor.
• Flexible and family-friendly: Add bacon, swap the protein, or tweak the seasonings to fit your crowd.
• Great for meal prep: Holds up well in the fridge and reheats nicely for work lunches or next-day dinners.

Ingredients

• 4 cups broccoli florets (fresh or frozen, cut into bite-sized pieces)
• 1 1/2 pounds cooked chicken, shredded or cubed (rotisserie chicken works well)
• 2 tablespoons butter
• 3 cloves garlic, minced
• 1 1/2 cups heavy cream
• 4 ounces cream cheese, softened and cubed
• 1 cup grated Parmesan cheese (freshly grated if possible)
• 1 1/2 cups shredded mozzarella, divided
• 1/2 teaspoon onion powder
• 1/2 teaspoon Italian seasoning (or a mix of dried basil and oregano)
• 1/4 teaspoon crushed red pepper flakes (optional, for a little heat)
• Salt and black pepper, to taste
• 2 tablespoons chopped parsley (optional, for garnish)
• Olive oil spray or a little butter, for greasing the baking dish

How to Make It

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1. Preheat and prep: Heat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with olive oil or butter.
2. Par-cook the broccoli: Steam or microwave the broccoli until just tender but still crisp, about 3–4 minutes.

   Drain well and pat dry with paper towels to prevent a watery bake.

3. Sauté the aromatics: In a large skillet over medium heat, melt the butter. Add the minced garlic and cook 30–60 seconds until fragrant. Do not brown.
4. Make the Alfredo base: Pour in the heavy cream and bring to a gentle simmer.

   Add the cream cheese cubes and whisk until smooth and thickened, 2–3 minutes.

5. Season and add cheeses: Stir in Parmesan, onion powder, Italian seasoning, red pepper flakes (if using), and a good pinch of salt and pepper. Simmer 1–2 minutes until the sauce coats a spoon. Taste and adjust seasoning.
6. Combine in the dish: Add the cooked chicken and broccoli to the baking dish.

   Pour the Alfredo sauce over the top and toss gently to coat everything evenly.

7. Top with cheese: Sprinkle 1 cup of mozzarella over the mixture. Fold lightly to incorporate, then scatter the remaining 1/2 cup on top for a melty crust.
8. Bake: Place the dish on the middle rack and bake 18–22 minutes, until bubbly around the edges and lightly golden on top.
9. Rest and garnish: Let it rest 5 minutes so the sauce sets. Finish with chopped parsley and a crack of black pepper before serving.

Keeping It Fresh

• Storage: Cool completely, then cover tightly and refrigerate for up to 4 days.
• Reheating: Warm individual portions in the microwave at 50–70% power to avoid breaking the sauce.

  For the whole dish, cover with foil and reheat in a 325°F (165°C) oven until hot.

• Freezing: This bake freezes well. Wrap tightly and freeze for up to 2 months. Thaw overnight in the fridge, then reheat gently.

  Add a splash of cream if the sauce seems too thick.

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Benefits of This Recipe

• Keto-friendly: Skips pasta and relies on broccoli and cheese for texture and richness.
• Balanced macros for satiety: Protein from chicken plus fat from cream and cheese keeps hunger in check.
• Vegetable-forward: A full 4 cups of broccoli adds fiber, vitamins, and structure.
• One-pan convenience: Minimal cleanup and easy assembly make it a great meal-prep choice.
• Customizable flavors: You can adapt seasonings and mix-ins without compromising the low-carb goal.

Common Mistakes to Avoid

• Skipping the broccoli pre-cook: Raw broccoli releases water as it bakes, which can thin your sauce. Par-cook and dry it first.
• Overheating the sauce: Boiling can cause separation. Keep it at a gentle simmer and whisk until smooth.
• Using pre-shredded cheese only: It often contains anti-caking agents that affect melting.

  Mix in freshly grated Parmesan for a smoother sauce.

• Under-seasoning: Alfredo relies on salt and pepper. Taste as you go and adjust before baking.
• Overbaking: Too long in the oven can make the sauce greasy and the chicken dry. Pull it once it’s bubbling and lightly golden.

Recipe Variations

• Chicken Bacon Ranch: Add 4 slices of cooked, crumbled bacon and 1 teaspoon ranch seasoning.

  Reduce salt slightly.

• Shrimp Alfredo Bake: Swap chicken for sautéed shrimp. Cook the shrimp just until pink, then fold into the sauce and bake briefly.
• Spinach and Mushroom: Sauté 1 cup sliced mushrooms in butter until browned, then stir in 2 cups fresh spinach until wilted. Add to the mix before baking.
• Creamy Pesto: Stir 2 tablespoons basil pesto into the Alfredo sauce for a bright, herby twist.
• Extra Cheesy: Add 1/2 cup shredded fontina or provolone with the mozzarella for a richer melt.
• Turkey or Rotisserie Mix: Use leftover turkey or a blend of white and dark rotisserie chicken for deeper flavor.

FAQ

Can I make this without dairy?

Yes, but you’ll need keto-friendly dairy substitutes.

Use unsweetened coconut cream in place of heavy cream, a dairy-free cream cheese alternative, and a vegan Parmesan-style topping. The flavor will be different, but still rich and satisfying.

What’s the best way to cook the chicken for this?

Use what’s easiest: rotisserie chicken, leftover grilled chicken, or poached chicken breasts. To poach, simmer salted water with a bay leaf and peppercorns, add chicken, and cook gently until it reaches 165°F (74°C).

Rest, then cube or shred.

Can I use frozen broccoli?

Absolutely. Thaw and drain it first, then pat it very dry. If it’s still icy-wet, microwave in short bursts and blot with paper towels to reduce excess moisture.

How many carbs are in a serving?

Exact numbers depend on brands and portion sizes, but a typical serving of this bake lands around 5–7g net carbs.

If you need precision, plug your ingredients into a nutrition calculator.

How can I make the sauce thicker?

Let it simmer a bit longer to reduce, and make sure the cream cheese is fully melted. You can also add a small handful of extra Parmesan for body. Avoid starch thickeners to keep it keto.

Can I add cauliflower rice?

Yes, but keep moisture in check.

Sauté the cauliflower rice first to drive off water, then fold it in with the chicken and broccoli before baking.

Is there a way to lighten the calories?

Use half-and-half in place of heavy cream and reduce the mozzarella slightly. The sauce won’t be as thick, but it will still be creamy and flavorful.

Final Thoughts

This Keto Alfredo Bake with Broccoli is proof that low-carb comfort food can be simple and crave-worthy. With a velvety sauce, plenty of protein, and a generous helping of veggies, it checks every box for an easy weeknight win.

Keep the method the same, swap in your favorite mix-ins, and you’ll have a go-to casserole that never gets old. Serve it with a crisp side salad, and dinner is done.