
This hearty Keto Mediterranean Ground Beef Stir Fry brings the vibrant flavors of Mediterranean cuisine to your dinner table while keeping carbs low. I created this recipe during a busy weeknight when I needed something quick yet flavorful that would satisfy my family's cravings without derailing our low-carb lifestyle.
I first made this dish when transitioning my family to a keto lifestyle. What started as an experiment with ingredients in my fridge has become our most requested weeknight meal. Even my vegetable-skeptical teenagers clean their plates when I serve this colorful stir fry.
Ingredients
- Ground beef: preferably 80/20 for optimal fat content and flavor while keeping the meat juicy
- Onion: adds natural sweetness and aromatic base
- Garlic: provides essential Mediterranean flavor and immune-boosting properties
- Bell peppers: multiple colors add vibrancy and vitamin C while staying low carb
- Zucchini: adds volume and nutrients with minimal carb impact
- Cherry tomatoes: bring brightness and a burst of acidity in every bite
- Olive oil: authentic Mediterranean flavor carrier and healthy fat source
- Dried oregano and thyme: classic Mediterranean herbs that infuse the dish with traditional flavor
- Feta cheese: optional but adds tangy saltiness and creamy texture contrast
- Fresh parsley: optional garnish that brightens the finished dish with color and fresh flavor
Step-by-Step Instructions
- Prepare the Ingredients:
- Chop all vegetables before heating your pan to ensure smooth cooking flow. Take extra time to cut vegetables uniformly about half-inch pieces to guarantee even cooking. Having everything ready prevents overcooking while you prepare the next ingredient.
- Brown the Beef:
- Heat olive oil in a large skillet over medium-high heat until shimmering but not smoking. Add ground beef breaking it into small pieces with a wooden spoon. Cook for about 5 minutes until no pink remains stirring occasionally to prevent burning. Browning creates rich flavor through the Maillard reaction giving depth to the entire dish.
- Add Aromatics:
- Add chopped onion and minced garlic to the browned beef. Reduce heat to medium and cook for 2 to 3 minutes until onion becomes translucent but not browned. Stir frequently to prevent garlic from burning which would add bitterness. The aromatics will release their oils into the fat creating the flavor foundation.
- Incorporate Vegetables:
- Add bell peppers and zucchini to the skillet. Cook for 3 to 4 minutes stirring occasionally until vegetables are bright and slightly softened but still maintain some crispness. Add cherry tomatoes last and cook for just 1 minute more as they break down quickly.
- Season the Dish:
- Sprinkle dried oregano and thyme evenly across the mixture. Season generously with salt and freshly ground black pepper. Stir thoroughly to distribute herbs and spices evenly throughout allowing them to bloom in the hot oil and release their essential oils.
- Finish and Serve:
- Remove from heat and let stand for 1 minute. Sprinkle with crumbled feta cheese if using allowing it to soften slightly from residual heat. Garnish with fresh chopped parsley just before serving for a burst of color and fresh flavor.

The secret to this dish is in the timing of adding each vegetable. I discovered through many iterations that adding the tomatoes too early results in a soggy texture. My grandmother always said Mediterranean cooking is about respecting each ingredient's nature and that wisdom transforms this simple stir fry into something special.
Storage Tips
This stir fry keeps beautifully in the refrigerator for up to 3 days in an airtight container. The flavors actually develop and improve overnight making it an excellent meal prep option. For best results reheat gently in a skillet with a splash of water or broth to restore moisture rather than using a microwave which can make the vegetables mushy.

Easy Substitutions
This recipe welcomes adaptations based on what you have available. Ground lamb offers a more authentic Mediterranean flavor profile with a richer taste. Turkey or chicken can reduce the fat content if preferred. Vegetable options are flexible too eggplant mushrooms or spinach work beautifully in place of or alongside the listed vegetables. If feta isn't your preference try goat cheese or skip the cheese entirely for a dairy free version.
Serving Suggestions
While perfect on its own this stir fry pairs wonderfully with cauliflower rice to soak up the flavorful juices. For a special presentation serve in lettuce cups for a fresh handheld option. A side of tzatziki sauce made with full fat Greek yogurt cucumber and garlic provides a cooling complement to the warm spices. For those not strictly following keto a side of warm pita bread allows for delicious wraps.
The Mediterranean Connection
This recipe draws inspiration from traditional Mediterranean cooking principles which emphasize fresh ingredients simple preparation and healthy fats. The combination of olive oil herbs and vegetables reflects the heart healthy approach that has made Mediterranean cuisine renowned worldwide. While authentic Mediterranean dishes often include grains or legumes this adaptation maintains the essential flavor profile while aligning with ketogenic dietary principles.
Frequently Asked Questions
- → Can I substitute ground beef for another protein?
Yes, you can use ground turkey, chicken, or even plant-based alternatives for a different flavor and texture.
- → How do I ensure the vegetables stay tender-crisp?
Cook the vegetables on high heat and remove them from the skillet as soon as they are slightly softened but still crunchy.
- → Can I make this dish dairy-free?
Absolutely, simply omit the feta cheese or replace it with a dairy-free alternative to keep it dairy-free.
- → What is the best type of ground beef to use for this dish?
Choose a higher-fat content ground beef such as 80/20 or 70/30 for a richer flavor and juicier texture.
- → Can I prepare this dish in advance?
Yes, you can prep the ingredients ahead of time and store them in the fridge. Reheat the cooked stir fry for a quick meal.
- → How should I store leftovers?
Store leftovers in an airtight container in the refrigerator for up to 3 days, or freeze for up to 2 months for longer storage.