If you’re looking for a quick and healthy keto dinner that’s full of flavor, this Beef with Bell Peppers Stir Fry is your new go-to. This low-carb dish comes together in just 15 minutes and is packed with nutrients and protein, making it ideal for weeknight meals or keto meal prep.
With only 3.8g net carbs per serving, this recipe is a perfect fit for ketogenic diets. The combination of high-protein grass-fed flank steak, antioxidant-rich bell peppers, and a tangy-sweet soy-based sauce makes every bite satisfying and nutritious.
Nutrition Highlights (Per Serving)
- Calories: 274
- Net Carbs: 3.8 g
- Total Fat: 13.1 g
- Protein: 32.9 g
According to the National Institutes of Health, high-protein diets help preserve lean muscle mass during weight loss and contribute to increased satiety. Bell peppers, on the other hand, are one of the lowest-carb vegetables and offer a solid dose of Vitamin C, with over 150% of your daily intake in just one cup!
Ingredients
- 1 tablespoon olive oil
- 1 pound grass-fed flank steak, thinly sliced
- 1 red bell pepper, sliced
- 1 green bell pepper, sliced
- 1 tablespoon fresh grated ginger
- 3 tablespoons low-sodium soy sauce (or coconut aminos for gluten-free)
- 1½ tablespoons balsamic vinegar
- 2 teaspoons sriracha (adjust to taste)
Instructions
- Heat olive oil in a large skillet or wok over medium-high heat.
- Add sliced flank steak and sear for about 2 minutes, or until browned but not overcooked. Remove from skillet and set aside.
- Add bell peppers to the skillet and sauté for 2–3 minutes until slightly tender but still crisp.
- Return beef to the pan, stir to combine with peppers.
- In a small saucepan, combine ginger, soy sauce, balsamic vinegar, and sriracha. Bring to a quick boil for about 1 minute.
- Pour the sauce over the beef and peppers. Stir well and cook for another 1–2 minutes to coat everything evenly.
- Serve hot, garnished with sesame seeds or green onions if desired.
Why This Recipe Works for Keto
This stir fry is high in protein and healthy fats, making it ideal for maintaining ketosis. You can increase fat content by serving it with a side of avocado or topping it with a drizzle of sesame oil.
It’s also incredibly customizable — swap flank steak with chicken or shrimp, or use yellow or orange bell peppers for variety. For an extra kick, add crushed red pepper flakes or more sriracha.
Best of all, it's done in under 20 minutes — faster than takeout and way healthier!
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For more low-carb stir fry ideas and keto sauces, check out Ruled.me Keto Recipes for inspiration and alternatives.