“Beef and broccoli”—just those words can whisk me away to my favorite Chinese takeout on a busy weeknight. But what if I told you that you can recreate this delicious dish at home with my Quick Low-Carb Beef and Broccoli recipe, all in your trusty Instant Pot? Not only does this recipe offer a fast solution for dinner, but it’s also low in carbs, making it a guilt-free choice! Imagine savoring tender slices of marinated flank steak paired with crisp-tender broccoli, all bathed in a rich, umami sauce, and knowing it’s not just tasty but healthy too. It’s the perfect balance of quick and comforting, ideal for those who want to ditch the fast food. Curious about how to bring this takeout favorite into your kitchen? Let’s dive in!

Why Choose Low-Carb Beef and Broccoli?
Quick and Easy: This dish comes together in just 30 minutes, making it perfect for busy weeknights.
Flavor-Packed: The umami-rich sauce brings a delightful taste that rivals your favorite takeout.
Healthy Twist: With a focus on low-carb ingredients, you can enjoy this classic without the guilt.
Versatile: Feel free to swap flank steak for chicken or shrimp, or toss in your favorite veggies for added crunch. Looking for more low-carb inspiration? Consider pairing this with Low Carb Vegetarian options for a complete meal!
Crowd-Pleasing: It’s a family-friendly recipe, loved by everyone from kids to adults. It’s bound to become a new dinner staple!
Low-Carb Beef And Broccoli Ingredients
For the Marinade
• Soy Sauce (or Coconut Aminos) – Offers a salty umami flavor; use coconut aminos for a gluten-free option.
• Beef Broth – Adds depth and richness to the sauce for enhanced flavor.
• Water – Helps to dilute the marinade components for balanced seasoning.
• Fish Sauce – Essential for that authentic umami taste; don’t skip this for the best results.
• Garlic Powder – Delivers aromatic, savory notes that enhance overall flavor.
• Green Onions – Adds a fresh, crunchy texture for a delightful bite.
• Granulated Sugar Substitute – Provides sweetness without carbs, keeping it low-carb friendly.
• Ground Ginger – Contributes warmth and spice to the marinade.
For the Main Dish
• Flank Steak – The main protein in the dish, offering tenderness when sliced thin.
• Broccoli – Fresh florets are best for ensuring the perfect crisp-tender texture.
• Arrowroot Powder – Thickens the sauce beautifully; can substitute with xanthan gum (use half the amount).
Dive into these ingredients and get ready to make a flavorful, low-carb beef and broccoli dish in the Instant Pot that the whole family will love!
Step‑by‑Step Instructions for Low-Carb Beef And Broccoli
Step 1: Prepare Marinade
In a mixing bowl or measuring cup, whisk together soy sauce (or coconut aminos), beef broth, water, fish sauce, garlic powder, chopped green onions, granulated sugar substitute, and ground ginger. Stir until all ingredients are thoroughly combined, forming a fragrant marinade with a balance of savory and sweet notes that will infuse the flank steak with flavor.
Step 2: Marinate Steak
Place the flank steak in a resealable plastic bag and pour the prepared marinade over the meat, ensuring it’s well-coated. Seal the bag, removing as much air as possible to help the flavors penetrate, and refrigerate for at least 30 minutes, or up to 4 hours for a richer taste. This step ensures that your Low-Carb Beef And Broccoli is bursting with aroma when cooked.
Step 3: Cook Beef
Lightly oil the bottom of your Instant Pot using a cooking spray or a teaspoon of olive oil. Add the marinated flank steak along with the marinade to the pot. Secure the lid and set the Instant Pot to cook on high pressure for 10 minutes. While it cooks, you’ll anticipate the tender beef and the rich scent wafting through your kitchen.
Step 4: Steam Broccoli
While the beef is cooking, prepare your fresh broccoli. In a steamer basket or by using the microwave, steam the broccoli florets for about 3–5 minutes until they are bright green and crisp-tender. This step ensures your Low-Carb Beef And Broccoli maintains a fresh, vibrant color and texture that complements the hearty beef.
Step 5: Thicken Sauce
After the cooking time is complete, carefully perform a quick release of steam from the Instant Pot. Remove the beef and set it aside. Cancel the cooking mode, select ‘sauté’, and mix arrowroot powder with a couple of tablespoons of water in a small bowl. Stir this mixture into the cooking liquid in the pot until it thickens, which should take about 1-2 minutes, creating a luscious sauce.
Step 6: Combine & Heat Through
Return the sliced beef and steamed broccoli to the Instant Pot, tossing them gently in the thickened sauce. Allow everything to heat through for 2-3 minutes, ensuring the flavors meld together beautifully. The glossy sauce will coat the beef and vegetables, giving your Low-Carb Beef And Broccoli a mouthwatering finish.
Step 7: Serve Immediately
Once heated through, serve your delicious Low-Carb Beef And Broccoli hot. Ladle the flavorful beef and broccoli onto plates or over a bed of cauliflower rice for an extra low-carb twist. Enjoy this comforting dish right away while it’s fresh and steaming!

Low-Carb Beef And Broccoli Variations
Feel free to personalize your dish and make it your own with these delightful twists!
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Protein Swap: Opt for chicken or shrimp instead of flank steak for a lighter protein choice. Both will absorb the delicious marinade beautifully.
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Vegetable Medley: Exchange broccoli for vibrant veggies like bell peppers, snap peas, or bok choy. This adds color and a good crunch, enhancing both flavor and nutrition.
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Spice it Up: Add a touch of heat with red pepper flakes or a drizzle of sriracha for some zing. Just a little can elevate the entire dish!
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Nutty Flavor: Sprinkle sesame seeds or crushed peanuts over the top just before serving. This adds a delightful crunch and brings a pleasantly nutty flavor.
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Low-Carb Upgrade: For an added fiber boost, serve with spiralized zucchini or spaghetti squash as a base instead of cauliflower rice. It’s a fun way to change up the carb count!
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Herb Finish: Mix in fresh herbs like cilantro or basil after cooking. Their vibrant flavors will brighten up the dish, creating a fresh twist to your Low-Carb Beef And Broccoli.
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Asian Twist: Incorporate a splash of hoisin or oyster sauce into the marinade for a richer, sweeter flavor profile reminiscent of takeout.
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Sweet Enhancement: If you’re craving a touch of sweetness, consider using a bit of monk fruit sweetener or a drizzle of honey (if your diet allows) as a finishing touch to contrast with the savory flavors.
Whichever variation you choose, your meal will be a delightful spin on this beloved classic! For more nutritious ideas, don’t miss our recipes like the Crockpot Potato Broccoli or explore the delightful flavors of Chilli Beef Spice. Enjoy!
How to Store and Freeze Low-Carb Beef and Broccoli
Fridge: Store leftover Low-Carb Beef and Broccoli in an airtight container for up to 4 days to maintain freshness and flavor.
Freezer: If you want to keep it longer, freeze the dish for up to 3 months. Make sure to wrap it tightly to avoid freezer burn.
Reheating: For the best results, reheat the dish on the stovetop over medium heat until warmed through. You can add a splash of water or broth to maintain moisture.
What to Serve with Quick Low-Carb Beef and Broccoli?
Elevate your meal experience with delightful sides that complement the rich flavors of your beef and broccoli dish.
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Cauliflower Rice: A fantastic low-carb alternative, it soaks up the savory sauce while providing a comforting, grain-like texture.
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Garlic Green Beans: Crisp-tender green beans sautéed with garlic add a fresh, vibrant crunch that beautifully contrasts with the savory beef.
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Cabbage Slaw: A refreshing, crunchy slaw made with shredded cabbage and light dressing offers a cool balancing effect next to the warm dish.
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Stir-Fried Zucchini Noodles: These zucchini noodles provide a satisfying, healthy base that mirrors traditional noodles without the carbs, making for a guilt-free option.
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Asian-Inspired Salad: Toss mixed greens, carrots, and sesame seeds together for a light and tangy side that enhances the overall meal.
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Miso Soup: A warm and comforting bowl of miso soup can add a cozy element to your dinner, cleansing the palate wonderfully.
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Chilled Cucumber Salad: Light, refreshing, and slightly tangy, this salad provides a delightful contrast to the rich flavors of the beef and broccoli.
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Riced Broccoli: For a seamless, veggie-packed side, riced broccoli offers a similar look and feel to traditional rice, enhancing the dish while keeping things low-carb.
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Sesame Oil Tea: A warm beverage infused with sesame oil rounds off your meal perfectly, offering a nutty aroma while promoting digestion after a hearty dinner.
Expert Tips for Low-Carb Beef And Broccoli
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Slice Against the Grain: Ensure your flank steak is sliced thinly against the grain for maximum tenderness in your Low-Carb Beef And Broccoli.
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Avoid Overcooking: Don’t skip the quick release of steam! Overcooking the beef can lead to tough, chewy pieces—keep it tender and juicy.
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Fresh Ingredients Matter: Use fresh broccoli florets. Frozen broccoli can become mushy and not provide the desired crisp-tender texture.
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Customize to Taste: Adjust the quantity of arrowroot powder to achieve your preferred sauce thickness. Experiment to find your ideal balance!
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Leftovers Storage: Store any leftovers in an airtight container for up to 4 days. Reheat on the stovetop for the best flavor and texture.
Make Ahead Options
These Low-Carb Beef and Broccoli are ideal for meal prep, allowing you to enjoy this flavorful dish without the last-minute rush! You can marinate the flank steak up to 24 hours in advance, which intensifies the flavor. Simply combine the marinade ingredients, place the sliced beef in a resealable bag, and refrigerate. Additionally, you can steam the broccoli up to 3 days ahead and store it in an airtight container in the fridge to preserve its crispness. When you’re ready to serve, just cook the beef in the Instant Pot and follow the thicken and combine steps, ensuring everything is just as delicious as when made fresh!

Low-Carb Beef and Broccoli Recipe FAQs
What type of beef should I use for the best results?
Absolutely use flank steak for its tenderness when sliced thinly! It cooks beautifully in the Instant Pot, absorbing all those wonderful flavors from the marinade. If you’re looking for a different option, you can also try sirloin or even chicken for a lighter feel.
How do I select the freshest broccoli?
Look for vibrant green florets that are tightly closed. Avoid any with yellowing leaves or dark spots all over, as these indicate past freshness. Ideally, purchase it the day you intend to cook your Low-Carb Beef and Broccoli for the best texture and taste!
How should I store leftovers, and how long will they last?
Store your leftover Low-Carb Beef and Broccoli in an airtight container in the fridge for up to 4 days. It’s perfect for meal prep! Allow it to cool down before placing it in the fridge to prevent moisture buildup and maintain flavors.
Can I freeze Low-Carb Beef and Broccoli? If so, how?
Yes! You can freeze it for up to 3 months. Just ensure it’s cooled completely, then transfer it into a freezer-safe container or heavy duty freezer bags. Remove as much air as possible before sealing to prevent freezer burn. When you’re ready to enjoy it again, simply thaw it in the refrigerator overnight before reheating.
What if my sauce is too thick, or too thin?
No worries at all—this is a common issue! If your sauce is too thick, add a little water or beef broth, one tablespoon at a time, until desired consistency is reached. For a sauce that’s too thin, you can create a slurry with a bit of arrowroot powder mixed with cold water and stir it into the sauce. Allow it to simmer until it thickens, usually 1-2 minutes.
Is this recipe suitable for those with food allergies?
Always check the labels of your ingredients, especially with soy sauce and fish sauce, as they can contain allergens like gluten or shellfish. For a gluten-free option, simply swap soy sauce for coconut aminos! Additionally, the recipe is low-carb, making it friendly for many dietary preferences. However, if you have specific allergies, adjust the ingredients accordingly to fit your needs.

Delicious Low-Carb Beef and Broccoli Ready in 30 Minutes
Ingredients
Equipment
Method
- In a mixing bowl or measuring cup, whisk together soy sauce (or coconut aminos), beef broth, water, fish sauce, garlic powder, chopped green onions, granulated sugar substitute, and ground ginger.
- Place the flank steak in a resealable plastic bag and pour the prepared marinade over the meat.
- Lightly oil the bottom of your Instant Pot. Add the marinated flank steak along with the marinade.
- Steam the broccoli florets for about 3–5 minutes until they are bright green and crisp-tender.
- After cooking, carefully perform a quick release of steam from the Instant Pot.
- Mix arrowroot powder with a couple of tablespoons of water in a small bowl and stir into the cooking liquid until it thickens.
- Return the sliced beef and steamed broccoli to the Instant Pot, tossing them gently in the thickened sauce.
- Serve your delicious Low-Carb Beef And Broccoli hot, optionally over cauliflower rice.
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