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Powerproteinplates
Low-Carb Beef and Zucchini Noodle Stir-Fry with Chimichurri
By Powerproteinplates Editorial TeamPublished Apr 24, 2026 | Updated Jul 22, 2026
South American
25 mins
high-proteinmuscle-buildingfitness-friendlygluten-freelow-carbeasy-recipesbalancedwhole-foodsquick-mealspost-workout
Delicious and easy Low-Carb Beef and Zucchini Noodle Stir-Fry featuring tender beef sirloin and fresh zucchini noodles tossed in a zesty South American chimichurri sauce. This high-protein, gluten-free, and balanced meal is perfect for muscle-building, post-workout recovery, and anyone following a low-carb diet.
Prep
15 min
Cook
10 min
Total
25 min
Servings
4
Difficulty
easy
Cuisine
South American
Ingredients
Servings
4
- 1 lb (450g) beef sirloin or flank steak, thinly sliced against the grain
- 3 medium zucchinis, spiralized into noodles
- 2 tbsp olive oil, divided
- 4 cloves garlic, minced
- 1 small red bell pepper, thinly sliced
- 1/2 tsp smoked paprika
- 1/4 tsp red pepper flakes (optional)
- Salt and freshly ground black pepper, to taste
- 1/2 cup fresh parsley leaves, tightly packed
- 1/2 cup fresh cilantro leaves, tightly packed
- 3 garlic cloves
- 1/4 cup red wine vinegar
- 1/2 cup extra virgin olive oil
- 1 tsp dried oregano
- 1/2 tsp crushed red pepper flakes
- Salt and black pepper to taste
- Juice of 1/2 lemon
Instructions
-
Prepare the chimichurri sauce: In a food processor or blender, combine parsley, cilantro, garlic cloves, red wine vinegar, dried oregano, crushed red pepper flakes, lemon juice, salt, and black pepper. Pulse until the herbs and garlic are finely chopped while retaining some texture.
-
While the processor is running, slowly drizzle in the extra virgin olive oil to emulsify the sauce. Adjust seasoning as needed. Set aside to let flavors meld.
-
Heat 1 tablespoon of olive oil in a large skillet or wok over medium-high heat.
-
Add the thinly sliced beef, seasoning with salt, black pepper, smoked paprika, and red pepper flakes. Stir-fry for 3-4 minutes until browned and cooked through. Remove beef and set aside.
-
In the same skillet, heat the remaining tablespoon of olive oil.
-
Add minced garlic and red bell pepper slices; cook for 1-2 minutes until fragrant and softened.
-
Add the zucchini noodles and toss quickly to combine. Stir-fry for 2-3 minutes until just tender but still with a firm bite to maintain texture.
-
Return the beef to the skillet and stir together for about 1 minute to warm through.
-
Remove from heat and plate the stir-fry. Spoon generous amounts of chimichurri sauce over the top.
-
Garnish with extra fresh parsley or cilantro if desired. Serve immediately.
Tips
Protein Highlight
beef gives this beef recipe its main protein focus, while supporting ingredients add texture, fiber, or slow-burning carbohydrates. Keep the protein portion clear on the plate instead of letting sauces, toppings, or starches become the bulk of the meal.
Goal Fit
This recipe fits meal prep, active-week eating, and balanced family meals because it combines familiar ingredients with a fitness-friendly structure. Use it when you want a practical option that can support recovery, satiety, or steady energy without turning the meal into a supplement-style dish.
Protein Density
To keep the protein density strong, measure calorie-dense extras and add more beef or a compatible high-protein side before increasing the starch or sauce. If you scale the recipe, preserve the ratio between the protein base and the vegetables, grains, or toppings.
Frequently Asked Questions
- Can I meal prep Low-Carb Beef and Zucchini Noodle Stir-Fry with Chimichurri?
- Yes. Portion it into airtight containers and keep toppings, sauces, or crunchy finishes separate when that will protect the texture.
- How can I increase the protein?
- Add a little more beef or pair the recipe with a compatible high-protein side such as Greek yogurt, eggs, tofu, beans, or lean meat depending on the recipe style.
- Can I make it lighter?
- Use measured oil, lighter dairy or sauce options, and a larger vegetable portion while keeping the main protein amount steady.
- What should I watch when swapping ingredients?
- Keep moisture, salt, and cooking time in mind because high-protein swaps can dry out or firm up faster than the original ingredient.
Ingredient Replacements
- beef sirloin or flank steak, thinly sliced against the grain: Use the closest lean protein or high-protein base that fits the recipe format, and keep the portion similar so the texture and protein balance stay intact.
- medium zucchinis, spiralized into noodles: Swap with a similar cooked grain, vegetable, dairy item, or pantry ingredient when needed, adjusting liquid or cooking time if the replacement is wetter or drier.
- olive oil, divided: Use a related spice, herb, sauce, or aromatic if this ingredient is unavailable, then taste before adding extra salt or heat.
- Gluten-free option: Choose certified gluten-free grains, crumbs, sauces, and pantry items when cross-contact matters.
- Dairy-free option: Replace yogurt, cheese, kefir, or milk-based ingredients with unsweetened high-protein dairy-free alternatives when they fit the recipe.
- Calorie adjustment: Keep oils, sweeteners, nuts, cheese, and creamy sauces measured so the recipe stays aligned with a protein-forward plate.
Storage
Cool Low-Carb Beef and Zucchini Noodle Stir-Fry with Chimichurri before storing, refrigerate in airtight containers for up to 4 days, keep crisp toppings or fresh garnishes separate when useful, freeze only if the main ingredients tolerate thawing well, and reheat gently with a splash of liquid or a short oven, skillet, microwave, or air-fryer warm-up that matches the recipe texture.
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