Keto Mac Cheese Bacon

Featured in: Weeknight Dinners

This low-carb twist on mac and cheese replaces pasta with tender roasted cauliflower florets, enveloped in a rich cheese sauce made with cheddar, mozzarella, and Parmesan. Crispy bacon crumbs add a savory crunch, while spices like smoked paprika and garlic powder enhance the flavors. This dish is baked until golden and bubbly, resulting in a comforting, keto-friendly meal perfect for a quick, satisfying dinner.

Updated on Sun, 15 Feb 2026 04:36:53 GMT
Creamy keto mac and cheese with roasted cauliflower and crispy bacon crumbs in a golden-baked casserole dish.  Pin It
Creamy keto mac and cheese with roasted cauliflower and crispy bacon crumbs in a golden-baked casserole dish. | urbanspatula.com

Finding comfort in a low-carb lifestyle is easy with this Keto Mac and Cheese. By using roasted cauliflower as a base instead of pasta, you create a dish that is just as satisfying and rich as the original. Smothered in a velvety four-cheese sauce and topped with smoky bacon, it’s a meal that truly hits the spot.

Creamy keto mac and cheese with roasted cauliflower and crispy bacon crumbs in a golden-baked casserole dish.  Pin It
Creamy keto mac and cheese with roasted cauliflower and crispy bacon crumbs in a golden-baked casserole dish. | urbanspatula.com

The key to this recipe is the roasting process. Unlike steaming, roasting removes excess moisture from the cauliflower, ensuring the cheese sauce stays thick and luxurious rather than watered down. This makes it the perfect keto alternative for anyone missing traditional macaroni and cheese.

Ingredients

  • Vegetables: 1 large head cauliflower (about 800 g), cut into bite-size florets
  • Dairy: 2 tablespoons unsalted butter, 1 cup heavy cream, 1 1/2 cups shredded sharp cheddar cheese, 1/2 cup shredded mozzarella cheese, 2 ounces cream cheese, 1/4 cup grated Parmesan cheese
  • Meats: 6 slices bacon
  • Pantry & Spices: 1/2 teaspoon garlic powder, 1/2 teaspoon onion powder, 1/4 teaspoon smoked paprika, salt and freshly ground black pepper to taste
  • Garnish (optional): 1 tablespoon chopped fresh chives or parsley
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Instructions

Step 1
Preheat the oven to 425°F (220°C). Line a baking sheet with parchment paper.
Step 2
Spread cauliflower florets on the prepared baking sheet. Drizzle with 1 tablespoon melted butter, season with salt and pepper, and toss to coat. Roast for 20–25 minutes, until golden and tender, stirring once halfway through.
Step 3
Meanwhile, cook the bacon in a skillet over medium heat until crispy, about 7–8 minutes. Drain on paper towels, then crumble into fine crumbs. Set aside.
Step 4
In a large saucepan over medium-low heat, melt the remaining 1 tablespoon butter. Add heavy cream, cream cheese, garlic powder, onion powder, smoked paprika, and a pinch of salt and pepper. Whisk until smooth and the cream cheese is melted (2–3 minutes).
Step 5
Gradually stir in cheddar, mozzarella, and Parmesan cheese. Continue whisking until the sauce is smooth and thick (do not boil).
Step 6
Add roasted cauliflower to the cheese sauce and stir gently to coat all pieces.
Step 7
Transfer to a baking dish, sprinkle evenly with bacon crumbs, and bake at 400°F (200°C) for 7–10 minutes until bubbly and golden on top.
Step 8
Garnish with fresh chives or parsley if desired. Serve hot.

Zusatztipps für die Zubereitung

To prevent the cheese sauce from breaking or becoming grainy, ensure you stir in the cheese gradually over medium-low heat and never let the mixture reach a full boil. Also, make sure your cauliflower is completely dry before roasting to achieve that perfect golden-brown finish.

Varianten und Anpassungen

For extra texture, add a sprinkle of crushed pork rinds with the bacon crumbs. You can also swap cheddar for Gruyère for a more sophisticated flavor profile or add a pinch of cayenne for more heat.

Serviervorschläge

Serve this dish as a hearty main course with a simple side salad, or as a decadent side dish paired with grilled chicken, steak, or roasted salmon.

Low-carb comfort food featuring tender roasted cauliflower florets smothered in rich cheese sauce and crunchy bacon topping.  Pin It
Low-carb comfort food featuring tender roasted cauliflower florets smothered in rich cheese sauce and crunchy bacon topping. | urbanspatula.com

Whether you are strictly keto or just looking for a delicious way to eat more vegetables, this roasted cauliflower mac and cheese is sure to become a regular in your recipe rotation. It's warm, cheesy, and satisfyingly crunchy.

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Questions & Answers

What can I use instead of cauliflower florets?

Steamed broccoli or zucchini chunks can work as substitutes to keep the dish low-carb and flavorful.

How do I get crispy bacon crumbs?

Cook bacon slices in a skillet over medium heat until crisp, then drain on paper towels and crumble finely.

Can I use different cheeses in the sauce?

Yes, Gruyère or smoked gouda can add unique flavors while maintaining creaminess.

What is the best way to roast cauliflower evenly?

Toss florets in melted butter, salt, and pepper, then spread in a single layer and roast about 20-25 minutes, stirring halfway.

How can I add extra heat to this dish?

A pinch of cayenne pepper or crushed red pepper flakes added to the cheese sauce works well.

Is this dish suitable for gluten-free diets?

Yes, it contains no gluten ingredients but check for cross-contamination on packaged products.

Keto Mac Cheese Bacon

A creamy low-carb dish with roasted cauliflower and crispy bacon for rich, satisfying flavor.

Prep Time
15 minutes
Cook Time
35 minutes
Overall Time
50 minutes
Created by Carter Phillips


Skill Level Easy

Cuisine American

Portions 4 Serving Size

Diet Preferences No Gluten, Low in Carbs

What You’ll Need

Vegetables

01 1 large head cauliflower (about 28 oz), cut into bite-size florets

Dairy

01 2 tablespoons unsalted butter
02 1 cup heavy cream
03 1.5 cups shredded sharp cheddar cheese
04 0.5 cup shredded mozzarella cheese
05 2 ounces cream cheese
06 0.25 cup grated Parmesan cheese

Meats

01 6 slices bacon

Pantry & Spices

01 0.5 teaspoon garlic powder
02 0.5 teaspoon onion powder
03 0.25 teaspoon smoked paprika
04 Salt and freshly ground black pepper to taste

Garnish

01 1 tablespoon chopped fresh chives or parsley

How-To Steps

Step 01

Prepare the oven and baking sheet: Preheat the oven to 425°F. Line a baking sheet with parchment paper.

Step 02

Roast the cauliflower: Spread cauliflower florets on the prepared baking sheet. Drizzle with 1 tablespoon melted butter, season with salt and pepper, and toss to coat. Roast for 20–25 minutes, until golden and tender, stirring once halfway through.

Step 03

Cook the bacon: Meanwhile, cook the bacon in a skillet over medium heat until crispy, about 7–8 minutes. Drain on paper towels, then crumble into fine crumbs. Set aside.

Step 04

Create the cheese sauce: In a large saucepan over medium-low heat, melt the remaining 1 tablespoon butter. Add heavy cream, cream cheese, garlic powder, onion powder, smoked paprika, and a pinch of salt and pepper. Whisk until smooth and the cream cheese is melted, approximately 2–3 minutes.

Step 05

Incorporate the cheeses: Gradually stir in cheddar, mozzarella, and Parmesan cheese. Continue whisking until the sauce is smooth and thick. Do not boil.

Step 06

Combine cauliflower with sauce: Add roasted cauliflower to the cheese sauce and stir gently to coat all pieces evenly.

Step 07

Assemble and bake: Transfer to a baking dish, sprinkle evenly with bacon crumbs, and bake at 400°F for 7–10 minutes until bubbly and golden on top.

Step 08

Finish and serve: Garnish with fresh chives or parsley if desired. Serve hot.

Tools You’ll Need

  • Baking sheet
  • Parchment paper
  • Large saucepan
  • Skillet
  • Baking dish
  • Whisk
  • Mixing spoon

Allergy Warnings

Review every ingredient for allergens and ask a professional if you’re unsure.
  • Contains dairy (cheese, cream, butter)
  • Contains pork (bacon)
  • Gluten-free, but verify labels for cross-contamination if highly sensitive

Nutrition Info (for each serving)

These nutrition details are for reference and don’t replace medical guidance.
  • Energy: 455
  • Fats: 38 g
  • Carbohydrates: 8 g
  • Proteins: 20 g