Keto

Serving

Keto Kid-friendly Quick & easy

Cauli-Mac and Cheese

Name: Cauli-Mac and Cheese
Total time: 30 min
Yield: 4 servings
Cuisine: Keto
Ingredients: 1 medium head cauliflower (cut into small florets); 1 cup heavy cream; 1.5 cups sharp cheddar cheese (shredded); 2 oz cream cheese (softened); 1/2 tsp garlic powder; 1/2 tsp onion powder; 1/4 tsp mustard powder; salt and pepper

Comforting low-carb cauliflower mac and cheese smothered in a rich cheddar cream sauce.

30 minutes

Serves 4

Dinner

14 min prep

23 min cook

Contains common allergens

Dairy Wheat mustard

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Good to know

Ready in under 30 minutes

Matched from this dish's own ingredients and timing. Browse more: 30-minute meals

Instructions

6 steps

1
Steam or boil the cauliflower florets until tender but not mushy, about 8 minutes; drain very well and pat dry to avoid a watery sauce.
2
In a saucepan over low heat, warm the heavy cream and cream cheese together, whisking until smooth.
3
Add the shredded cheddar a handful at a time, whisking until fully melted and glossy; stir in the garlic powder.
4
Fold the drained cauliflower into the cheese sauce, coating every piece.
5
Season with salt and pepper to taste.
6
Transfer to a serving dish, garnish with chives, and serve hot.

Cauli-Mac and Cheese — plated and served — Serving moment. How Cauli-Mac and Cheese looks plated and ready to eat — a representative photo, not a step in the recipe.

Listahan Family Score™

75/100

Good fit for most families

Allergen-friendly 70

Kid-friendly 85

Weeknight-easy 96

Budget-friendly 72

Great leftovers 56

Pantry-friendly 49

Score reflects how well this recipe fits a typical busy household. In the app, your Family Score is personalized to your household's allergens, kids, and pantry.

Nutrition

per serving

270

Calories

17 g

Protein

9 g

Carbs

19 g

Fat

Estimated per serving. Actual values depend on the brands and portions you use.

Listahan cooking guide

Chef notes & practical guide

Technique notes, ingredient swaps, serve-alongside ideas, storage guidance, and equipment for this recipe.

Cultural context

Mac and cheese is one of the most emotionally loaded comfort foods in North American households, so keto versions have been attempted with everything from shirataki to hearts of palm pasta — most with disappointing results. Cauliflower works because it shares mac's soft bite and neutral flavor, and it holds a thick cheese sauce without the sauce sliding off as it does with wetter substitutes. The dish occupies an honest middle ground: it is not mac and cheese, but it delivers the same cheesy, creamy satisfaction for families managing carb intake.

Listahan note

This version prioritizes an ultra-thick, pull-apart cheese sauce made with cream cheese and sharp cheddar so the dish feels indulgent rather than like a consolation prize.

Technique cues

Roast the cauliflower florets at 425 F until the edges just begin to brown before adding the cheese sauce — this drives off excess moisture that would otherwise make the final dish watery.
Add the cream cheese to the sauce first and whisk until fully dissolved before adding shredded cheddar; this prevents the sauce from breaking into greasy pools.
Shred cheese from a block rather than using pre-shredded bags, which contain anti-caking starch that causes the sauce to turn gritty when melted.

Kitchen flow

Parallel prep: Roast cauliflower in the oven while making the cheese sauce on the stovetop so both finish at the same time.
Make-ahead: Make the cheese sauce up to 3 days ahead and refrigerate; reheat gently with a splash of cream, then fold in freshly roasted cauliflower.
Leftover move: Reheat with an extra tablespoon of cream stirred in, then top with crumbled bacon and broil for 3 minutes to get a crispy, refreshed surface.
Cleanup rhythm: Make the sauce in the same oven-safe skillet you will finish the dish in, eliminating the need for a separate baking dish.

Ingredient brief

Role, handling, and swap guidance for each key ingredient.

cauliflower

pasta substitute

Purpose: Cauliflower roasts to a tender-firm bite that mimics elbow pasta without adding significant carbs to the dish.

Handling: Cut into roughly 1-inch florets and roast until lightly golden before combining with the sauce.

Adaptation: Broccoli florets can substitute for half the cauliflower for a more nutritious variation with a slightly stronger flavor.

sharp cheddar

primary cheese

Purpose: Sharp cheddar contributes intense cheesy flavor so a smaller quantity delivers a fully satisfying result.

Handling: Grate from a cold block on the large holes of a box grater just before making the sauce.

Adaptation: Gruyere or a mix of white cheddar and Fontina melts even more smoothly and adds complexity.

cream cheese

sauce binder and thickener

Purpose: It keeps the sauce thick and stable without flour or cornstarch, and adds a subtle tang that brightens the overall cheese flavor.

Handling: Soften at room temperature for 20 minutes so it dissolves smoothly into the hot cream without lumps.

Adaptation: Full-fat mascarpone produces an even silkier sauce with a milder flavor.

heavy cream

sauce liquid base

Purpose: High fat content allows the sauce to reduce without breaking, giving it a coating consistency that clings to the cauliflower.

Handling: Warm gently in the saucepan before adding cheeses to prevent temperature shock that can cause separation.

Adaptation: Full-fat coconut cream works for a dairy-free direction, though it adds a faint coconut undertone.

Dijon mustard

flavor sharpener

Purpose: A small amount of Dijon amplifies the sharpness of the cheddar and adds depth without a detectable mustard flavor.

Handling: Whisk in with the cream cheese at the start of the sauce.

Adaptation: Dry mustard powder at half the quantity delivers a similar effect.

Technique notes

Pull the sauce off heat as soon as the cheese is melted and glossy; continued heat causes the fat to separate out and the sauce to go grainy.
Season the sauce aggressively with salt and white pepper before adding the cauliflower — the vegetable will dilute the seasoning when combined.
A pinch of smoked paprika and a few drops of hot sauce whisked into the sauce just before serving add a dimension that makes this taste like more than a diet dish.

Ingredient swaps

Dairy-free direction: Replace cream with full-fat coconut cream, cream cheese with soaked-and-blended cashews, and cheddar with a cashew-based vegan cheese; the sauce will be thinner but still satisfying.
Lower-calorie direction: Use Neufchatel in place of cream cheese and reduce heavy cream by a third, adding extra sharp cheddar to maintain flavor intensity.
Weeknight shortcut: Microwave the cauliflower florets with a tablespoon of water, covered, for 5 minutes instead of roasting; the texture is softer but the total time drops under 20 minutes.

Serve alongside

Simple arugula salad with lemon vinaigrette
Crispy bacon strips
Roasted cherry tomatoes with basil
Sparkling water with cucumber slices
Unsweetened iced black tea

Serving suggestions only — check pairings for your household's allergens.

Storage & reheating

Store in an airtight container in the refrigerator for up to 4 days; the sauce thickens considerably when cold.
Reheat on the stovetop over low heat with a splash of heavy cream or water, stirring constantly until the sauce loosens and becomes glossy again.

Equipment

Rimmed baking sheet for roasting cauliflower
Heavy-bottomed saucepan or 10-inch oven-safe skillet for the sauce
Box grater for block cheese

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