Keto Garlic Butter Roasted Cabbage Slices

Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Intensity Level: Easy (1/5) – Minimal chopping, hands-off roasting.
Servings: 4 slices (1 slice per serving)
Dietary: Keto, Low-Carb, Gluten-Free, Vegetarian, Paleo-friendly (if using ghee)

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Why You’ll Love This Recipe

If you’re on a keto diet and craving something savory, hearty, and satisfying without the carbs, these roasted cabbage slices are your new best friend. Thick-cut cabbage steaks are slathered in a rich, nutty garlic butter sauce, then roasted until the edges are crispy and caramelized while the centers become tender and sweet. This dish takes just 10 minutes of active work and delivers big flavor with only 5 grams of net carbs per serving. Serve it alongside a juicy steak, roasted chicken, or even as a light main course with a fried egg on top.

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Ingredients

• 1 medium head green cabbage (about 2 lbs / 900g)

• 4 tbsp (56g) unsalted butter (or ghee for dairy-free)

• 4 cloves garlic, minced

• ½ tsp sea salt

• ¼ tsp black pepper

• ¼ tsp smoked paprika (optional, for depth)

• 1 tbsp fresh parsley, chopped (for garnish)

• 2 tbsp grated Parmesan cheese (optional, omit for strict keto or dairy-free)

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Instructions

Intensity Level Breakdown

• Knife work: Low (just slicing cabbage and mincing garlic)

• Oven monitoring: Very low

• Cleanup: Easy (one baking sheet, one small saucepan)

Step 1 – Preheat and Prepare

Preheat your oven to 400°F (200°C). Line a large baking sheet with parchment paper or a silicone baking mat for easy cleanup.

Step 2 – Slice the Cabbage

Remove any wilted outer leaves from the cabbage. Cut the cabbage in half through the core, then cut each half into ¾-inch to 1-inch thick slices. You should get about 4 to 6 “steaks” depending on the size of your cabbage. Keep the core intact on each slice so they don’t fall apart during roasting. Place the slices on the prepared baking sheet in a single layer.

Step 3 – Make the Garlic Butter

In a small saucepan over medium-low heat (intensity: low), melt the butter. Add the minced garlic and cook for 1–2 minutes until fragrant, but not browned (browned garlic becomes bitter). Remove from heat. Stir in the salt, pepper, and smoked paprika.

Step 4 – Brush and Roast

Brush the garlic butter generously over both sides of each cabbage slice. Use all of the butter mixture. Roast in the preheated oven for 15 minutes. Then, carefully flip each slice with a spatula and roast for another 10 minutes, until the edges are deep golden brown and crispy, and the centers are fork-tender.

Step 5 – Finish and Serve

Remove from the oven. If using Parmesan, sprinkle it over the hot cabbage slices immediately so it melts. Garnish with fresh parsley. Serve warm.

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Chef’s Tips for Success

• Don’t slice too thin: Slices under ½ inch will burn before they soften. ¾ to 1 inch is the sweet spot.

• Keep the core: The core acts like a spine, holding each cabbage steak together.

• Butter temperature: Don’t let the garlic sizzle or brown – low and slow preserves that sweet, pungent garlic flavor.

• Air fryer option: Cook at 375°F (190°C) for 12–14 minutes, flipping halfway.

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Nutrition Facts (per 1 slice, without Parmesan)

With Parmesan cheese added: +10 calories, +0.5g fat, +0.4g protein, +0.1g carbs.

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Storage & Reheating (Last of the Recipe)

To store leftovers: Place any uneaten cabbage slices in an airtight container and refrigerate for up to 3 days. Note that the crispy edges will soften in the fridge.

To reheat (best texture): Reheat in a 375°F oven or air fryer for 5–7 minutes until edges crisp up again. Avoid microwaving if possible – it makes the cabbage watery and floppy.

To freeze: Not recommended. Cabbage has high water content and becomes mushy upon thawing. For best results, make only as much as you’ll eat fresh.