Keto Low Carb Beef and Broccoli

This Keto Low Carb Beef and Broccoli is a fast, flavorful stir-fry that satisfies my takeout cravings without the carbs. Tender slices of beef are coated in a savory-sweet garlic soy sauce and tossed with crisp-tender broccoli. It’s everything I love about the classic dish, made healthier and perfect for low-carb living.

Why You’ll Love This Recipe

I love that this dish is ready in under 30 minutes and tastes just like my favorite restaurant version—without the added sugar or starch. It’s full of protein and fiber, and I don’t miss the rice at all when I serve it as-is or over cauliflower rice. It’s perfect for weeknights, meal prep, or whenever I want something comforting but still keto-friendly.

Ingredients

(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)

• Flank steak or sirloin, thinly sliced

• Broccoli florets

• Olive oil or avocado oil

• Garlic, minced

• Soy sauce or coconut aminos (for a gluten-free option)

• Beef broth

• Sesame oil

• Brown sugar substitute (like erythritol or monk fruit)

• Xanthan gum (for thickening)

• Red pepper flakes (optional)

• Green onions and sesame seeds (for garnish)

Directions

1. I start by slicing the beef thinly across the grain and seasoning lightly with salt and pepper.

2. I heat oil in a large skillet or wok over medium-high heat and sear the beef in batches until browned, then remove it from the pan.

3. In the same skillet, I add more oil if needed and sauté the garlic until fragrant.

4. I toss in the broccoli and stir-fry for about 4–5 minutes until it’s bright green and just tender.

5. While the broccoli cooks, I whisk together soy sauce, beef broth, sesame oil, sweetener, and a pinch of xanthan gum in a small bowl.

6. I return the beef to the skillet and pour the sauce over everything, stirring well to coat.

7. I let it simmer for a few minutes until the sauce thickens slightly, then garnish with green onions and sesame seeds before serving.

Servings and timing

This recipe serves 4 and takes about 25 minutes to make from start to finish.

Variations

• I sometimes add mushrooms or bell peppers for more variety.

• For a spicy twist, I stir in sriracha or extra red pepper flakes.

• I use coconut aminos for a soy-free version.

• If I don’t have xanthan gum, I reduce the sauce a bit longer to thicken it naturally.

• I serve it over cauliflower rice or shredded cabbage for a full low-carb meal.

Storage/Reheating

I store leftovers in an airtight container in the fridge for up to 4 days. To reheat, I warm it gently in a skillet or microwave until heated through. The sauce stays thick, and the broccoli holds up well if I don’t overcook it the first time. It also freezes well, although the texture of the broccoli may soften a bit.

FAQs

Can I use frozen broccoli?

Yes, I can, but I prefer to thaw it and pat it dry first. It may be softer than fresh, but it still works in a pinch.

What’s the best beef for this recipe?

I usually use flank steak or sirloin because they’re tender and easy to slice thinly. Just make sure to cut across the grain.

Is this recipe really keto?

Yes, I make sure to use a sugar-free sweetener and soy sauce or coconut aminos with no added sugars to keep it fully keto-friendly.

Can I skip the xanthan gum?

I can. The sauce will be thinner, but still flavorful. Reducing the sauce a bit longer helps naturally thicken it.

Can I make this ahead of time?

Definitely. I often prep the beef and sauce in advance, then just cook everything fresh when it’s time to eat. It reheats well too.

Conclusion

Keto Low Carb Beef and Broccoli is one of my favorite dishes when I want something quick, satisfying, and guilt-free. It’s got all the flavor of traditional beef and broccoli without the carbs, and it’s so easy to make at home. Whether I’m cooking for a low-carb lifestyle or just want a healthier dinner, this dish always delivers.

Keto Low Carb Beef and Broccoli

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• Author: Mary
• Prep Time: 10 minutes
• Cook Time: 15 minutes
• Total Time: 25 minutes
• Yield: 4 servings
• Category: Main Course
• Method: Stir-Fry
• Cuisine: Asian-Inspired
• Diet: Gluten Free

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Description

This Keto Low Carb Beef and Broccoli is a quick and easy stir-fry recipe that delivers all the flavor of classic takeout without the carbs. With tender beef slices, crisp broccoli, and a savory garlic soy sauce, it’s a delicious low-carb dinner ready in under 30 minutes—perfect for weeknights or meal prep.

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Ingredients

• 1 lb flank steak or sirloin, thinly sliced across the grain
• 3 cups broccoli florets
• 2 tbsp olive oil or avocado oil
• 3 cloves garlic, minced
• ¼ cup soy sauce or coconut aminos (for gluten-free option)
• ¼ cup beef broth
• 1 tbsp sesame oil
• 1 tbsp brown sugar substitute (erythritol or monk fruit)
• ¼ tsp xanthan gum (for thickening)
• ¼ tsp red pepper flakes (optional)
• 2 green onions, sliced (for garnish)
• 1 tsp sesame seeds (for garnish)
• Salt and black pepper, to taste

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Instructions

1. Slice beef thinly and season lightly with salt and pepper.

2. Heat 1 tbsp oil in a large skillet or wok over medium-high heat. Sear beef in batches until browned, then remove and set aside.

3. Add remaining oil to skillet if needed. Sauté garlic for 30 seconds until fragrant.

4. Add broccoli and stir-fry for 4–5 minutes until crisp-tender.

5. In a small bowl, whisk together soy sauce, beef broth, sesame oil, sweetener, and xanthan gum.

6. Return beef to skillet and pour sauce over the mixture. Toss to coat and simmer for 2–3 minutes until sauce thickens.

7. Garnish with green onions, sesame seeds, and red pepper flakes if using. Serve warm.

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Notes

• Add mushrooms or bell peppers for extra flavor and texture.
• Use sriracha or chili flakes for a spicy version.
• Swap soy sauce with coconut aminos for soy-free keto.
• Skip xanthan gum and simmer sauce longer for natural thickening.
• Serve over cauliflower rice or shredded cabbage for a full low-carb meal.