Gluten-Free Beef Lo Mein recipe is an easy dinner idea perfect for two! Craving Chinese takeout but need a gluten-free option? Made with tender flank steak, vibrant vegetables, and a savory Tamari-based sauce, it’s ready in just 30 minutes. Whether you add rice noodles for a classic touch or enjoy it on its own, this dish delivers bold flavors and satisfies those takeout cravings without leaving home.

Flank steak is my favorite cut of beef and works beautifully in this gluten-free Beef Lo Mein recipe, perfect for a delicious dinner for two or saving leftovers for later. If you love easy, homemade gluten-free meals, be sure to try my Gluten-Free Chicken Fried Steak for another comforting dinner idea!

This easy dinner recipe calls for rice noodles which are naturally gluten-free. However, be sure to read the ingredient label to make sure. I do not eat a lot of processed foods; I prefer this beef dish without noodles. My husband prefers this dish over rice. Regardless of whether you add the noodles or not, this dish can be made in 30 minutes!

Why You’ll Love It

Ready in 30 minutes
Naturally gluten-free ingredients
An easy dinner for two
Customizable

What You’ll Need

Flank steak: My favorite cut for its tender texture and rich flavor.
Tamari sauce: A gluten-free alternative to soy sauce that’s a must for this dish.
Rice noodles (optional): For a classic lo mein feel, skip them for a lower-carb version.
Green beans: Fresh or frozen—whatever you have on hand!
Carrots: Grated for a pop of color.
Avocado oil: For its mild flavor and high smoke point. Swap with olive oil if needed.
Garlic cloves: Fresh garlic adds bold, aromatic flavor!
Ginger: Fresh ginger (or ground) brings a warm, slightly spicy zing to the dish.
Brown sugar: Sugar balances the savory and spicy flavors with a touch of sweetness.
Red pepper flakes: A pinch for a gentle heat—adjust to suit your spice preference!”
Sesame oil: Rich and nutty sesame oil ties the flavors together for an authentic finish.

Bridget’s Recipe Notes

Slice flank steak against the grain for tenderness.
Pro Tip: Freeze the steak for 15 minutes before slicing for cleaner cuts.

Gluten-Free Beef Lo Mein

Bridget Towery/Happy Healthy Homey

Craving takeout but need a gluten-free option? This easy Gluten-Free Beef Lo Mein is a quick and flavorful dinner made with tender flank steak, fresh veggies, and rice noodles. Ready in just 30 minutes, this recipe is perfect for two or meal prepping leftovers. Whether you include the noodles or go without, this dish is packed with bold flavors and is naturally gluten-free, thanks to Tamari sauce. Enjoy a satisfying and healthy twist on a Chinese takeout classic!

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Prep Time 15

Ingredients

12 oz. Flank steak cut against the grain and sliced into bite size strips
12 oz. rice noodles optional
2 cups of green beans fresh or frozen
1 large carrot grated
2 large garlic cloves minced
1 teaspoon of fresh ginger peeled and grated or ground ginger
½ cup Tamari sauce
½ cup brown sugar packed
¼ teaspoon of red pepper flakes
¼ teaspoon fresh ground black pepper
2 Tablespoons Avocado oil or olive oil
1 Tablespoon Sesame oil

Instructions

Prepare rice noodles according to the package instructions. Once cooked, rinse with cold water to stop the cooking process and set aside.
In a large skillet, heat avocado oil over medium heat. Add the flank steak and sear until browned and tender, about 3-4 minutes per side.
Stir in garlic cloves, ginger, green beans and carrots. Cook for about 5 minutes.
In a small bowl, mix Tamari sauce, brown sugar, red pepper flakes, black pepper and Sesame oil.
Add the cooked rice noodles to the flank steak and stir in the sauce making sure everything is evenly coated. Heat on low until the noodles and sauce are warm.

Notes

Prep times may vary depending on your pace in the kitchen and any disruptions, but this recipe is designed to be quick and straightforward! For faster prep, consider using pre-cut veggies or pre-minced garlic and ginger.
Serve your Gluten-Free Beef Lo Mein in a shallow bowl and garnish with sesame seeds or green onions for a visually appealing dish.

Tried this recipe? I’d love to hear from you! Drop a comment below with your thoughts—did you make any fun swaps? 🍜

From my happy, healthy home to yours,