Low Carb Beef & Broccoli Skillet – A Fast, Flavor-Packed Weeknight Dinner

This beef and broccoli skillet is the kind of recipe you keep on repeat. It’s quick, comforting, and tastes like your favorite takeout—without the carbs or the fuss. Everything cooks in one pan, and dinner hits the table in about 25 minutes.

The sauce is savory, slightly sweet, and clings to tender beef and crisp-tender broccoli. If you’re trying to eat low carb but still want big flavor, this one earns a permanent spot in your rotation.

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Low Carb Beef & Broccoli Skillet - A Fast, Flavor-Packed Weeknight Dinner

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Prep Time 10 minutes mins

Cook Time 15 minutes mins

Total Time 25 minutes mins

Servings: 4 servings

Ingredients Method

Ingredients

  

• 1.25 pounds flank steak or sirloin, thinly sliced against the grain
• 4 cups broccoli florets (fresh or frozen)
• 2 tablespoons avocado oil or light olive oil, divided
• 3 cloves garlic, minced
• 1 teaspoon fresh ginger, grated (or 1/2 teaspoon ground ginger)
• 3 green onions, sliced (white and green parts separated)
• 1/2 teaspoon red pepper flakes (optional, for heat)
• 1/3 cup beef broth
• 3 tablespoons tamari or coconut aminos (for gluten-free; use low-sodium if preferred)
• 1 tablespoon rice vinegar or apple cider vinegar
• 1 tablespoon sesame oil
• 1–2 teaspoons granular monk fruit sweetener or erythritol (adjust to taste)
• 1 tablespoon tomato paste (for depth and color)
• 1/2 teaspoon xanthan gum (or 1 tablespoon arrowroot slurry if not strict low carb)
• Salt and black pepper to taste

Method

 

1. Prep the beef: Pat the steak dry and slice it thinly against the grain. Season lightly with salt and black pepper. Set aside while you make the sauce.
2. Mix the sauce: In a small bowl, whisk together beef broth, tamari or coconut aminos, vinegar, sesame oil, sweetener, and tomato paste. Sprinkle in xanthan gum and whisk until smooth. Taste and adjust sweetness or salt.
3. Cook the broccoli: Heat 1 tablespoon oil in a large skillet over medium-high heat. Add broccoli and a pinch of salt. Stir-fry 3–4 minutes (5–6 if frozen) until crisp-tender. Transfer to a plate.
4. Sear the beef: Add remaining oil to the skillet. Increase heat to high. Add beef in a single layer (work in batches to avoid steaming). Sear 1–2 minutes per side until browned with pink inside. Transfer to the plate with broccoli.
5. Sauté aromatics: Reduce heat to medium. Add garlic, ginger, and the white parts of the green onions. Cook 30–45 seconds until fragrant. Add red pepper flakes if using.
6. Combine and sauce: Return beef and broccoli to the pan. Pour in the sauce and toss. Simmer 1–2 minutes until it thickens and coats everything. If it gets too thick, splash in a bit more broth.
7. Finish and serve: Top with green onion tops and sesame seeds. Taste and adjust seasoning. Serve as is, or over cauliflower rice for a bigger meal.

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What Makes This Recipe So Good

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• Fast and simple: One skillet, minimal chopping, and dinner is ready in under 30 minutes.
• Low carb without compromise: You get all the bold, takeout-style flavor with a sauce that’s naturally low in sugar.
• Budget-friendly: Flank steak or sirloin tips stretch well, and broccoli is affordable. You can even use frozen broccoli to save time.
• Meal prep hero: Reheats like a dream, and the flavors deepen overnight.
• Flexible: Works with different cuts of beef, and you can swap in veggies you have on hand.

Ingredients

• 1.25 pounds flank steak or sirloin, thinly sliced against the grain
• 4 cups broccoli florets (fresh or frozen)
• 2 tablespoons avocado oil or light olive oil, divided
• 3 cloves garlic, minced
• 1 teaspoon fresh ginger, grated (or 1/2 teaspoon ground ginger)
• 3 green onions, sliced (white and green parts separated)
• 1/2 teaspoon red pepper flakes (optional, for heat)

For the Low Carb Sauce:

• 1/3 cup beef broth
• 3 tablespoons tamari or coconut aminos (for gluten-free; use low-sodium if preferred)
• 1 tablespoon rice vinegar or apple cider vinegar
• 1 tablespoon sesame oil
• 1–2 teaspoons granular monk fruit sweetener or erythritol (adjust to taste)
• 1 tablespoon tomato paste (for depth and color)
• 1/2 teaspoon xanthan gum (or 1 tablespoon arrowroot slurry if not strict low carb)
• Salt and black pepper to taste

Optional Garnishes: Toasted sesame seeds, extra green onion tops, a squeeze of lime.

How to Make It

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1. Prep the beef: Pat the steak dry and slice it thinly against the grain.

   Season lightly with salt and black pepper. Set aside while you make the sauce.

2. Mix the sauce: In a small bowl, whisk together beef broth, tamari or coconut aminos, vinegar, sesame oil, sweetener, and tomato paste. Sprinkle in xanthan gum and whisk until smooth.

   Taste and adjust sweetness or salt.

3. Cook the broccoli: Heat 1 tablespoon oil in a large skillet over medium-high heat. Add broccoli and a pinch of salt. Stir-fry 3–4 minutes (5–6 if frozen) until crisp-tender.

   Transfer to a plate.

4. Sear the beef: Add remaining oil to the skillet. Increase heat to high. Add beef in a single layer (work in batches to avoid steaming).

   Sear 1–2 minutes per side until browned with pink inside. Transfer to the plate with broccoli.

5. Sauté aromatics: Reduce heat to medium. Add garlic, ginger, and the white parts of the green onions.

   Cook 30–45 seconds until fragrant. Add red pepper flakes if using.

6. Combine and sauce: Return beef and broccoli to the pan. Pour in the sauce and toss.

   Simmer 1–2 minutes until it thickens and coats everything. If it gets too thick, splash in a bit more broth.

7. Finish and serve: Top with green onion tops and sesame seeds. Taste and adjust seasoning.

   Serve as is, or over cauliflower rice for a bigger meal.

Storage Instructions

• Fridge: Store in an airtight container for up to 4 days. Reheat in a skillet over medium heat with a splash of broth, or microwave in 30-second bursts.
• Freezer: Cool completely, then freeze in portions for up to 2 months. Thaw overnight in the fridge before reheating.
• Meal prep tip: Keep extra sauce on the side to freshen up leftovers when reheating.

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Health Benefits

• Low in carbs, high in protein: Lean beef provides complete protein to support muscle and satiety without relying on grains or sugar.
• Fiber and micronutrients: Broccoli adds fiber for digestive health, plus vitamin C, vitamin K, and antioxidants.
• Better fats: Cooking with avocado or olive oil and finishing with sesame oil supports heart-healthy fat intake.
• Gluten- and dairy-free options: Using tamari or coconut aminos keeps the recipe gluten-free without losing flavor.

Common Mistakes to Avoid

• Overcrowding the pan: Crowding steams the beef and turns it gray.

  Sear in batches for a good crust.

• Overcooking broccoli: You want crisp-tender, not mushy. Pull it as soon as it turns bright green and tender.
• Too much thickener: Xanthan gum works fast. Start with the amount listed and add tiny pinches if you need more.
• Skipping the grain slice: Cutting the beef against the grain keeps it tender.

  With the grain leads to chewiness.

• Forgetting to taste: Sauces vary in saltiness and sweetness. Taste and tweak before adding to the pan.

Recipe Variations

• Spicy Szechuan-Style: Add 1 teaspoon chili crisp or 1 tablespoon gochujang (check carbs) to the sauce and toss in a handful of roasted peanuts.
• Mushroom Upgrade: Sear 8 ounces sliced mushrooms after the broccoli for extra umami and volume without many carbs.
• Orange-Ginger Twist: Add 1 teaspoon orange zest and a few drops of orange extract to the sauce for a takeout-style vibe with minimal sugar.
• Sesame Beef: Stir in 1 tablespoon tahini to the sauce and finish with extra toasted sesame seeds.
• Different cuts: Use skirt steak, flat iron, or thinly sliced chuck eye. For ultra-lean options, try top round and marinate 20 minutes in a splash of tamari and vinegar for tenderness.
• Extra veg, still low carb: Add sliced bell pepper, snap peas, or baby bok choy in small amounts to keep carbs low while boosting color and texture.