High-Protein Keto Garlic Butter Cauliflower & Mushrooms

High-Protein Keto Garlic Butter Cauliflower & Mushrooms

Skillet cauliflower and mushrooms in garlic butter — low carb, sugar-free, and ready in 25 minutes

This high-protein keto garlic butter cauliflower and mushrooms side browns in one skillet. Cauliflower florets and mushrooms pick up browned butter, garlic, and Parmesan. Each serving has 7 g of protein and 6 g net carbs.

Low carb, sugar-free, and done in about 25 minutes.

Prep10 min
Cook15 min
Servings4
Protein7g
Net Carbs6g
Calories180

Why you’ll love this skillet

  • 7g protein per serving
  • Only 6g net carbs
  • No flour or sugar
  • Ready in about 25 minutes
  • Golden mushrooms and florets
  • Easy steak or chicken side

Health notes

  • Higher protein for a veg side: Parmesan and mushrooms add more than plain steamed cauliflower.
  • Low carb: Cauliflower stands in for potatoes or rice.
  • Sugar-free: Flavor comes from butter, garlic, and herbs.
  • One pan: No oven required unless you want extra roast color.

Key element — don’t crowd the pan

Mushrooms and cauliflower steam if they sit on top of each other. Give them space so the edges brown and the butter stays nutty, not watery.

Ingredients

Skillet (4 servings)

  • 1 medium head cauliflower, cut into florets (about 6 cups)
  • 12 oz (340g) mushrooms, halved or sliced
  • 3 Tbsp butter
  • 1 Tbsp olive oil
  • 4 cloves garlic, minced
  • ⅓ cup grated Parmesan
  • ½ tsp salt
  • ½ tsp black pepper
  • ¼ tsp paprika or Italian seasoning
  • 2 Tbsp chopped parsley
  • 1 Tbsp lemon juice (optional)

Swaps

  • Higher protein: Add extra Parmesan or toss in leftover shredded chicken.
  • Dairy-free: Use ghee or olive oil and skip the cheese, or use a dairy-free hard cheese.
  • Spicy: Add red pepper flakes with the garlic.
  • Oven: Roast at 425°F for 20–22 minutes, then toss with garlic butter.

Instructions

Pro tips

  • Dry the mushrooms after rinsing or they won’t brown.
  • Cut florets similar in size so they cook evenly.
  • If the pan looks dry, add another teaspoon of butter instead of water.
  • A splash of lemon at the end keeps the dish from tasting heavy.
  • Leftovers reheat well in a hot skillet, not the microwave.

Nutrition

NutrientPer serving
Calories180
Protein7g
Net carbohydrates6g
Total carbohydrates10g
Fiber4g
Total fat14g
Sodium380mg

Estimates based on cauliflower, mushrooms, butter, and Parmesan, divided into 4 servings. Exact numbers vary with cauliflower size and cheese amount.

Variations

Steakhouse

Add a pinch of thyme and extra black pepper.

Cheesy bake

Transfer to a dish, top with mozzarella, and broil 2 minutes.

Lemon herb

Finish with extra parsley and lemon zest.

With protein

Stir in cooked chicken or shrimp in the last 2 minutes.

Storage

MethodTimeNotes
RefrigeratorUp to 4 daysStore in an airtight container
FreezerUp to 1 monthTexture softens after thawing
ReheatSkilletMedium-high heat until edges sizzle again

FAQ

Yes. Cauliflower and mushrooms stay around 6g net carbs per serving with no sugar or flour.
The pan was crowded or the heat was too low. Cook in batches if needed.
Yes, but thaw and pat it dry first or it will steam.
Add extra Parmesan or fold in cooked chicken, shrimp, or sausage.
Yes. Roast at 425°F, then toss with garlic butter and Parmesan.
Cremini or baby bella brown well. White button mushrooms also work.

Test your knowledge

5 quick questions about this garlic butter skillet

1. Protein per serving?

2. Net carbs per serving?

3. Why shouldn’t you crowd the skillet?

4. About how long does this take?

5. Best way to reheat leftovers?

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