Hasselback Zucchini

Hasselback Zucchini is a simple Mediterranean-inspired side dish that turns fresh zucchini into something beautiful, flavorful, and satisfying. Thin slices are made across each zucchini without cutting all the way through, allowing garlic, herbs, tomato, and cheese to work their way into every layer.

Roasted until tender and lightly caramelized, this easy vegetable recipe makes a wonderful side for chicken, fish, pasta, or grilled meats. It is also an excellent way to make everyday zucchini feel special enough for a dinner table or holiday meal.

Prep Time: 15 minutes
Cook Time: 25–30 minutes
Total Time: 40–45 minutes
Servings: 4

Ingredients

For the Zucchini

4 medium to large zucchini
2 tablespoons olive oil
3 cloves garlic, freshly minced
2 tablespoons tomato paste or concentrated marinara sauce
1 teaspoon Italian seasoning
½ teaspoon salt
¼ teaspoon freshly ground black pepper
¼ teaspoon red pepper flakes, optional

For the Cheese Topping

½ cup grated Parmesan cheese or shredded mozzarella
1 tablespoon fresh parsley, chopped, optional

For Finishing

1 tablespoon olive oil, if needed
Freshly ground black pepper, to taste
Extra Italian herbs or parsley, optional

Instructions

Prepare the Zucchini

Preheat the oven to 425°F (220°C). Line a baking sheet or baking dish with parchment paper or lightly grease it with olive oil.

Wash and thoroughly dry the zucchini. Trim off the ends, then place each zucchini between two chopsticks, wooden spoons, or the handles of two similar utensils. Carefully make thin cuts about ⅛-inch apart across the zucchini.

The utensils will stop the knife from cutting completely through the vegetable, keeping the bottom connected. This is the key to creating the classic Hasselback appearance.

Repeat with the remaining zucchini.

Make the Garlic-Tomato Seasoning

In a small bowl, combine the olive oil, minced garlic, tomato paste or concentrated marinara sauce, Italian seasoning, salt, black pepper, and red pepper flakes if using.

Mix until you have a smooth, fragrant seasoning mixture.

The tomato paste adds a rich, slightly sweet flavor and gives the zucchini a beautiful red coating as it roasts.

Season the Zucchini

Place the prepared zucchini on the baking sheet with the cut side facing upward.

Brush the garlic-tomato mixture generously over each zucchini. Try to work some of the mixture gently into the cuts without forcing the slices apart.

A small pastry brush works especially well, but you can also use the back of a spoon to spread the seasoning evenly.

Drizzle with a little additional olive oil if the zucchini looks dry.

Roast Until Tender

Transfer the zucchini to the preheated oven and roast for approximately 20–25 minutes.

As the zucchini cooks, the slices should begin to separate slightly and the edges should become lightly browned. The center should be tender but not mushy.

If your zucchini are particularly large, they may need another 5 minutes of roasting.

Add the Cheese

Remove the baking sheet from the oven and sprinkle Parmesan or mozzarella evenly over the zucchini.

Return the zucchini to the oven for another 3–5 minutes, or until the cheese is melted and lightly golden.

For extra browning, switch the oven to broil for the final 1–2 minutes, watching carefully so the cheese does not burn.

Garnish and Serve

Remove the Hasselback zucchini from the oven and let them rest for a couple of minutes.

Finish with chopped fresh parsley, a little freshly ground black pepper, or an extra sprinkle of Italian seasoning.

Serve warm as a side dish or light vegetarian main course.

Tips

Keep the Bottom Intact

The most important part of Hasselback zucchini is keeping the slices connected at the bottom. Using chopsticks or wooden spoons as knife guides makes this much easier and prevents accidental cuts all the way through.

Make Even Slices

Try to keep each cut similar in thickness. Thin, evenly spaced slices roast more consistently and create a better Hasselback texture.

Choose Firm Zucchini

Medium to large zucchini work especially well because they provide enough surface area for slicing. Choose zucchini that feel firm and have smooth, unblemished skin.

Do Not Overcrowd the Pan

Leave a little space between each zucchini. This allows hot air to circulate and helps the edges roast instead of steaming.

Brush Between the Slices

For stronger flavor, gently brush some of the garlic-tomato mixture into the cuts. Do not force the slices open, as this can cause them to break apart.

Watch the Cheese Carefully

Cheese can brown quickly under the broiler. If you use the broiler, keep a close eye on the zucchini during the final minute or two.

Serve Immediately

Hasselback zucchini is best served warm, when the zucchini is tender and the cheese is soft and flavorful.

Variations

Mediterranean Feta Version

Replace the Parmesan or mozzarella with crumbled feta. Add fresh parsley, oregano, and a small squeeze of lemon juice after roasting for a brighter Mediterranean flavor.

Extra Cheesy Zucchini

Use a combination of mozzarella and Parmesan. Add mozzarella during the final few minutes of baking and finish with Parmesan for a golden, savory crust.

Herb Garlic Version

Skip the tomato paste and increase the garlic. Add dried oregano, basil, thyme, and parsley for a lighter herb-forward variation.

Spicy Hasselback Zucchini

Increase the red pepper flakes or add a pinch of smoked paprika to the seasoning mixture. A little chili powder can also add extra warmth.

Tomato and Mozzarella Version

For a Caprese-inspired variation, tuck very thin slices of cherry tomato and small pieces of mozzarella into some of the zucchini cuts before the final stage of baking.

Lemon Herb Version

Add fresh lemon zest to the garlic and herb mixture and finish the roasted zucchini with lemon juice and fresh parsley.

Crunchy Parmesan Topping

Combine Parmesan with a tablespoon of breadcrumbs and sprinkle it over the zucchini during the final few minutes. Bake until crisp and golden.

Q&A

Can I prepare Hasselback zucchini ahead of time?

Yes. You can slice and season the zucchini several hours ahead and keep them covered in the refrigerator. Bake just before serving for the best texture.

Why is my zucchini watery?

Zucchini naturally contains a lot of water. Roasting at a high temperature helps excess moisture evaporate. Avoid overcrowding the baking dish and make sure the oven is fully preheated.

Can I use yellow squash instead of zucchini?

Yes. Yellow squash can be prepared using the same method and cooking time, although the exact cooking time may vary depending on its size.

Can I make this recipe without cheese?

Absolutely. The zucchini is flavorful even without cheese. Simply roast it with the garlic, tomato, olive oil, and herbs and finish with fresh parsley and lemon juice.

Can I use marinara sauce instead of tomato paste?

Yes. Concentrated marinara works well, although you may need slightly less olive oil because marinara already contains moisture.

How do I know when the zucchini is done?

The zucchini should be tender when pierced with a fork, while the edges should have some light browning. The slices should fan apart slightly without becoming completely soft.

What should I serve with Hasselback zucchini?

It pairs beautifully with grilled chicken, roasted salmon, steak, Mediterranean rice, pasta, couscous, or a fresh green salad.

Nutrition

Approximate nutrition per serving, assuming four servings and using Parmesan:

Calories: 180 kcal
Protein: 9 g
Carbohydrates: 12 g
Fat: 12 g
Saturated Fat: 3 g
Fiber: 4 g
Sugar: 7 g
Sodium: 420 mg

Nutrition values are estimates and can vary depending on the size of the zucchini, amount of cheese, and specific ingredients used.

Conclusion

Hasselback Zucchini is an easy way to transform simple summer squash into an impressive roasted side dish. The combination of garlic, tomato, Italian herbs, olive oil, and melted cheese creates layers of savory flavor while keeping the preparation simple.

Serve it alongside your favorite Mediterranean-inspired meal, or enjoy it as a light vegetarian dish with a salad and crusty bread.