Introduction
If you’re on the keto diet or just trying to reduce your carb intake, finding delicious side dishes that are both satisfying and low in carbohydrates can be a challenge. Our Keto Cheesy Garlic Zucchini Steaks recipe provides a savory, satisfying option that’s loaded with flavor, nutrition, and melt-in-your-mouth cheesy goodness—all while keeping carbs in check. Zucchini, known for its versatility and mild flavor, is transformed into thick, juicy “steaks” and paired with a golden, garlicky cheese topping that will have even non-keto eaters asking for seconds.
These zucchini steaks can serve as a main course for a light meal, or as a robust, hearty side dish that complements almost any protein, from grilled chicken to steak or fish. With minimal ingredients, simple preparation, and a very short cook time, this dish is ideal for busy weeknights and impressively elegant for dinner parties.
Why Zucchini? The Low-Carb Vegetable Star
Zucchini is one of the most keto-friendly vegetables available. It’s low in carbohydrates, rich in fiber, and full of water—making it excellent for digestion and hydration. Zucchini is also a good source of vitamin C, manganese, and potassium, all important nutrients for those on a ketogenic diet. Its neutral flavor allows it to absorb the flavors it’s paired with, especially garlic and cheese in this recipe, making it a fantastic base for many keto dishes.
What Are Zucchini Steaks?
“Zucchini steaks” refer to thick slices of zucchini cut lengthwise or crosswise into large, steak-like slabs. Unlike spiralized or diced zucchini, this method creates a hearty texture that holds up well during baking or grilling. These steaks get crispy on the edges and tender in the middle, delivering a mouthwatering bite every time.
Ingredients You’ll Need
To prepare these cheesy garlic zucchini steaks, you’ll need the following ingredients:
Main Ingredients:
- 3 medium zucchinis (about 6–7 inches long each)
- 2 tablespoons olive oil
- 4 garlic cloves, finely minced
- ½ teaspoon sea salt
- ¼ teaspoon black pepper
- ¼ teaspoon crushed red pepper flakes (optional, for a bit of heat)
Cheese Topping:
- 1 cup shredded mozzarella cheese (part-skim preferred)
- ½ cup freshly grated Parmesan cheese
- 1 teaspoon Italian seasoning
- 1 tablespoon fresh parsley, chopped (for garnish)
Kitchen Tools Required
- Sharp chef’s knife
- Cutting board
- Baking sheet
- Parchment paper or silicone baking mat
- Small mixing bowl
- Pastry brush or spoon
- Oven or air fryer (both methods are provided)
How to Make Keto Cheesy Garlic Zucchini Steaks – Step-by-Step Instructions
Step 1: Prep the Zucchini
Wash and dry your zucchinis. Cut off the ends. Then, slice each zucchini lengthwise into thick slabs about ½ inch to ¾ inch thick. Aim for about 3 slices per zucchini, depending on the size. This thickness ensures the steaks stay firm during baking and don’t become mushy.
Step 2: Season the Zucchini
Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper. Arrange zucchini steaks in a single layer. In a small bowl, mix the olive oil, minced garlic, salt, pepper, and red pepper flakes (if using). Use a brush or spoon to evenly coat each zucchini steak with this mixture on both sides.
Step 3: Bake the Zucchini
Place the tray in the preheated oven and bake for 15–18 minutes, flipping once halfway through. The edges should begin to brown slightly, and the zucchini should be tender but still hold its shape.
Step 4: Add the Cheese
Remove the tray from the oven. In a small bowl, mix the shredded mozzarella, Parmesan, and Italian seasoning. Evenly sprinkle the cheese mixture over each zucchini steak.
Step 5: Broil to Perfection
Turn on your oven’s broiler and return the zucchini steaks to the oven. Broil for 2–3 minutes, or until the cheese is bubbly and golden brown. Watch closely to avoid burning.
Step 6: Garnish and Serve
Remove the zucchini from the oven and let cool for a minute. Garnish with chopped parsley and serve hot as a side dish or a light entrée.

Air Fryer Instructions (Optional)
To prepare this recipe in an air fryer:
- Preheat the air fryer to 390°F (200°C).
- Arrange zucchini steaks in a single layer in the air fryer basket.
- Air fry for 8–10 minutes, flipping halfway.
- Add the cheese mixture and air fry for another 2–3 minutes until the cheese is melted and browned.
Serving Suggestions
Keto Cheesy Garlic Zucchini Steaks are incredibly versatile. Pair them with:
- Grilled chicken breast with lemon butter
- Baked salmon fillets
- Keto meatloaf
- Cauliflower mash or cauliflower rice
They can also be layered into a zucchini lasagna or served cold as a part of an antipasto platter.
Storage and Meal Prep Tips
Leftover zucchini steaks can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, use a toaster oven or air fryer for best texture. Avoid microwaving as it can make them soggy.
This recipe is also great for meal prepping. You can pre-slice the zucchini and mix the cheese topping in advance. Assemble and bake when ready.
Nutritional Information (Per Serving)
Assuming this recipe makes 6 servings (about 1 zucchini steak per serving):
- Calories: 110 kcal
- Total Fat: 8g
- Saturated Fat: 3.5g
- Cholesterol: 15mg
- Sodium: 210mg
- Carbohydrates: 4g
- Fiber: 1.2g
- Net Carbs: 2.8g
- Sugar: 2g
- Protein: 6g
Weight Watchers SmartPoints (Per Serving)
Estimated SmartPoints (Blue, Green, and Purple): 2 Points per serving
This recipe is low in points due to the use of part-skim mozzarella and a vegetable base. For even lower points, you may use fat-free mozzarella or less cheese.
Is This Recipe Keto-Friendly?
Absolutely. With only ~3g net carbs per serving, this dish is perfect for keto, low-carb, and diabetic-friendly diets. The high fat and protein content, combined with fiber from the zucchini, makes it satiating and nourishing without a blood sugar spike.
Substitution Tips
- Cheese: Try using Gruyère, cheddar, or provolone for a flavor twist.
- Herbs: Fresh basil or oregano can be used in place of Italian seasoning.
- Spice Level: Add sliced jalapeños or a sprinkle of chili powder if you like heat.
Allergy-Friendly Adjustments
- Dairy-Free: Use dairy-free shredded cheese alternatives made from cashew or almond milk.
- Garlic-Free: For those with an intolerance, garlic-infused olive oil (FODMAP-friendly) can be used instead.
Health Benefits of This Dish
Besides being low in carbs, this dish is a great source of antioxidants, fiber, and calcium. Garlic has anti-inflammatory and immune-boosting properties, while zucchini promotes hydration and gut health.
Can I Freeze It?
While possible, it’s not recommended. Zucchini has high water content and may become mushy after freezing and thawing. It’s best enjoyed fresh or refrigerated for a few days.
Final Thoughts
Keto Cheesy Garlic Zucchini Steaks are more than just a side dish—they’re a celebration of simple ingredients, bold flavors, and wholesome nutrition. Whether you’re keto, gluten-free, or just looking for more creative ways to enjoy vegetables, this recipe delivers on all fronts. With its quick preparation, rich flavor profile, and cheesy indulgence, it’s sure to become a repeat favorite in your home.