Paleo Steak and Broccoli Stir-Fry (Whole30, Keto)

4 minute read

Tender bites of steak shine in a Paleo Steak and Broccoli stir-fry sauce with al dente broccoli and savory mushrooms. This dinner checks all the boxes: delicious, healthy, quick and easy, gluten-free, and perfect for any night of the week!

Steak night means a delicious stir fry the next night for dinner. I love to find shortcuts for meal prepping during our busy weeks between juggling piano lessons, swim practice, tennis, and work, and using a juicy, tender NY strip steak from the previous night means this meal is ready in less than 20 minutes. Served over some cauliflower rice or organic short grain brown rice, you have a better-than-takeout beef and broccoli stir fry that gives your local takeout a run for its money.

Why Grass-Fed Beef is So Good For You!

Let’s first talk about why I prefer grass-fed beef over grass-finished and industrial beef.  In their natural habitat, cows eat grass and small amounts of grain when the grass is seeding [1]. This provides the cow all the nutrients it needs to healthy, and we want to eat healthy animals.  When cow are fed a lot of grain, like in industrial beef, the food source is not the natural source of food for the cows and it lacks the nutrients the cow needs to stay healthy, thus creating a less nutritious beef.

Additionally, because grass-fed cows are eating what they are supposed to be eating, the beef they produce is the most nutrient dense and has the omega-3’s that are supposed to naturally be in the beef.  Due to the lack of nutrients in industrial beef, it does not contain the omega-3’s thus creating a nutrient deficient beef.

Grass-fed beef is not necessarily the same as grass-finished beef, so make sure you ask your butcher or the farm you source your beef from to clarify.  Ideally you want beef sourced from an animal that grazed on grass its entire life, however there are farms that grain-feed most of the life and then “finish” on grass, or even grass feed most of the life and “grain-finish” to fatten the animal up in the last few months.  As mentioned before, 100% grass-fed beef is the most nutrient dense beef and is my preferred choice when eating ground beef, steak, or using bones for broth.

Grass-fed beef is loaded with nutrients such as protein, fat, vitamins and minerals. 

  • Protein is an essential nutrient and beef is a complete source of all essential amino acids you need.  Amino acids are the building blocks to the proteins in your body, including collagen, and they are necessary in cellular health and repair.
  • Over one third of the fat found in beef is oleic acid, the same monounsaturated fat that is also found in avocado oil and extra virgin olive oil.  Oleic acid supports brain and nervous system function and support healthy blood sugar regulation [2].
  • Vitamins: B3 (niacin: support healthy blood fat levels and blood sugars ), B6 (supports a healthy immune system), B12 (essential vitamin necessary in red blood cell formation.)


  • Iron: Heme iron that is easily absorbed and is necessary in the formation of hemoglobin.
  • Phosphorus: Supports healthy teeth and bones, muscle recovery after working out, and detoxification.
  • Selenium: Supports thyroid health [3] and supports your immune system.
  • Zinc: Essential in digestion, thyroid health, and a healthy immune system.

So grab some 100% grass-fed steak and let’s get cooking!

Paleo Steak and Broccoli Stir-Fry (Whole30, Keto) Ingredients

Serves 2-4

Stir Fry Ingredients

1 Tbsp Avocado Oil

8-16 oz Leftover Steak, thinly sliced

½ Onion, thinly sliced

8oz Mushrooms, quartered (cremini or shiitake)

2 cup Broccoli Florets

½ tsp Fine Real Salt

Paleo Stir Fry Sauce Ingredients

2 Tbsp Arrowroot Starch* or Tapioca Starch

1/2 cup Filtered Water, cool

3/4 cup Unsalted Chicken Bone Broth

1/4 cup Garlic Coconut Aminos

1 Tbsp Fish Sauce

1/4 cup Honey or Pure Maple Syrup

2 Tbsp Rice Wine Vinegar

1 Tbsp Pure Sesame Oil

2-4 Cloves Garlic, finely minced

1 tsp Fine Real Salt

1/2 tsp Ground Black Pepper

1/2-1 teaspoon Crushed Red Pepper fFlakes (opt)

1 Tbsp Sesame Seeds (opt)

*Omit if you want a thinner sauce

How to Make Paleo Steak and Broccoli Stir-Fry

1. In a medium bowl combine all the sauce ingredients and whisk well to combine, set aside.

2. Slice the steak and set aside.

3. Prep the onion, mushrooms and broccoli, set aside.

4. To a large skillet add the avocado oil and onion and sauté over medium heat for 5-7 minutes until softened and lightly caramelized.

5. Add the mushrooms and broccoli and ½ teaspoon of salt and sauté for 5-7 minutes until the mushrooms and broccoli have softened but aren’t mushy.

6. Add the stir-fry sauce and bring to a low simmer, simmer for 1-2 minutes for the sauce to thicken.

7. Stir in the beef and serve.

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Q: What could I use if I don’t have leftover steak?

A: You could substitute flank steak that has been thinly sliced against the grain. I would give it a quick stir fry over high heat, remove while preparing the veggies and sauce, and the stir it in at the end so it doesn’t get overcooked.

Q: Can you use frozen broccoli in this stir fry dish?

A: Yes, it will not have the same crispness as fresh, but it’s a great substitute for a quick stir fry!

Q: If I make the sauce ahead of time, how long will it keep?

A: Making the sauce ahead of time is a great time saver! You could mix all the ingredients into a 16oz mason jar and keep it in the fridge up to a week until you are ready to use it!

Note: This post contains Amazon affiliate links to the products and kitchen gear I love. If you click on a link and make a purchase, I receive a small commission at no cost to you. Thank you for supporting Almond Milk and Cookies!


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Welcome to Almond Milk and Cookies where good food, health and lots of flavor go hand-in-hand!

I am a holistic nutritionist with an auto-immune disorder, a love of cooking, and a passion for holistic health.

Sharing what I make and eat with all of you…in hopes that you find inspiration here to fuel your body and feel your best with nutrient dense whole foods and clean eating.

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