As we get near the holidays, I am all about keeping my day to day pretty simple. I’ve fallen in love with Porter Road’s Flat Iron and I have been using it for everything. We already made our delicious steak sandwiches with the beef, but I was so excited to find other ways to use it. This simple weeknight beef stir fry is so quick and easy but totally delicious.

close up on weeknight beef stir fry

Why I use Flat Iron

I had no idea that flat iron was the second most tender cut of beef after filet mignon! When I found out, I was blown away. It’s such an affordable cut, and that’s why it’s so perfect for some quick weeknight cooking. As a steak lover, I know how quickly those prices can add up. I’m always looking for ways to use the most delicious steaks that don’t break the bank.

weeknight stir fry prep

What’s also so wonderful about the flat iron is that it is incredibly forgiving. It lends itself to pan frying, and even if you lose track of time or leave it on a minute or two too long, the result is still a beautifully juicy steak.

I gushed all about my love for Porter Road with our steak sandwich, but I also love what an educational resource it is. On every meat cut, they show you where the cut comes from, how best to cook it, and suggestions for how to serve it. It’s so fun to learn from the experts who are so passionate about what they do. You know I am a big proponent of talking to your farmers and butchers. Porter Road makes it so easy to feel like you are doing just that!

How to Make Your Weeknight Beef Stir Fry

With a couple of vegetables, a simple stir fry infuser, and your flat iron steak, you’ll have dinner in no time. My Stir Fry Infuser Magic Elixir is as easy as stirring some ingredients together, but it makes a huge difference in flavor. Start by making your infuser and then set it aside.

vegetables in pan

Now, cook the steak. Because the flat iron has so much flavor and juiciness, all you need is some salt and pepper! Cook the steak in a hot pan for about seven minutes total, flipping halfway through. Once it’s cooked, place it on a cutting board to rest while you sauté the vegetables for your stir fry. In the same pan, cook up your broccolini, bell peppers, and green onions. Add in your garlic and sesame seeds, then pour your stir fry infuser in.

Now your steak should be well rested, so you can slice it thinly. A lot of times I will stir my beef into my stir fry, but with this gorgeous steak, I prefer to just let sit on top and be the star of the show. You can serve this stir fry by itself to keep it extra easy. You can also add some rice (or cauliflower rice if you want to keep it Whole30!).

final product of stir fry

If you make this Weeknight Beef Stir Fry, make sure you rate and review it below! If you’re looking for more inspiration, sign up for our Friday Favorites newsletter, and follow along on Pinterest and Instagram to join in all the fun!

clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
final product of stir fry

Simple Weeknight Beef Stir Fry for Two

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 1 review
  • Author: Teri Turner
  • Prep Time: 10 minutes
  • Cook Time: 10 minutes
  • Total Time: 20 minutes
  • Yield: 2 servings
  • Category: Dinner
  • Method: Stovetop
  • Cuisine: Stir Fry
  • Diet: Gluten Free


This weeknight beef stir fry is ready in 20 minutes and is perfect for quick, easy and delicious eating!


For the Stir Fry Infuser:

½ cup plus 1 tablespoon coconut aminos

¼ cup plus 2 tablespoons rice vinegar

1 tablespoon hot sauce

Juice from 2 tablespoons grated fresh ginger

1 teaspoon minced garlic


For the Stir Fry

1 teaspoon Kosher salt

¼ teaspoon freshly ground black pepper

1 (½ pound) Porter Road Flat Iron Steak

2 tablespoon extra-virgin olive oil, divided

1 cup chopped broccolini (florets and stems chopped into ½ inch pieces—Be sure to cut off the woody ends.)

1 cup sliced yellow bell pepper (thin strips about 1 ¼ inches long)

½ cup sliced green onions (½ inch long pieces, cut on the bias)

1 teaspoon minced garlic

1 teaspoon toasted sesame seeds, plus more for garnish


In a medium bowl, mix the coconut aminos, vinegar, hot sauce, ginger juice, and garlic until thoroughly combined. Set aside.


Season the steak on both sides with  salt and pepper.


In a sauté pan over medium high heat, heat up 1 tablespoon of olive oil. Cook the steak until browned and crispy on one side, about 3 ½ minutes. Flip and continue to cook until the other side is golden brown, about 3 ½ minutes. A total of 7 minutes. Remove the steak from the pan and let it rest.


While the steak is resting, carefully wipe out the pan and heat 1 tablespoon of olive oil, still over medium-high heat. Add the broccolini, bell peppers and green onions, and cook for about 1 ½ minutes. Then add the garlic and the sesame seeds, stir to combine and cook for about 30 seconds. Add 2 tablespoons of the stir fry infuser and stir to combine. Turn off heat.


Thinly slice the Flat Iron Steak. Place the steak on top of the sautéed vegetables and top off with more sesame seeds. Delicious over a bed of with rice, cauliflower rice or your favorite gluten free noodle. Serve with extra stir fry infuser sauce and enjoy!   


Note: Store the leftover stir fry infuser in the refrigerator and use it in your everyday cooking. Splash it over some rice, sprinkle it over vegetables – I even like it on top of a hamburger!