Air Fryer Parmesan Zucchini Foil Packets (Easy Side Dish)

These air fryer Parmesan zucchini foil packets are the easiest vegetable side I make. Sliced zucchini gets tossed with garlic, lemon, herbs, olive oil, and plenty of Parmesan, sealed in foil, and air fried until tender and buttery. The foil locks in the flavor and keeps your air fryer basket clean.

They’re perfect for meal prep, too: assemble the packets ahead, keep them in the fridge, and air fry right before dinner. If you love Parmesan and zucchini together, try my crispy Air Fryer Zucchini Chips or Copycat Red Robin Zucchini Fries next.

Why You’ll Love These Zucchini Foil Packets

• No-mess cleanup: The foil keeps cheese and butter out of your air fryer basket.
• Big flavor, few ingredients: Garlic, lemon, herbs, and Parmesan make simple zucchini taste special.
• Meal-prep friendly: Assemble the packets up to a day ahead and air fry when you’re ready.
• Light and low-carb: A fresh vegetable side that fits most eating styles, including keto.
• Easy to customize: Add other vegetables or change the seasonings to match your main dish.

Ingredients for Parmesan Zucchini Foil Packets

• Zucchini: Two firm, medium zucchini, sliced into ¼-inch rounds.
• Parmesan cheese: Grated Parmesan melts into the zucchini and gives the packets their savory flavor.
• Garlic: Fresh minced garlic, or garlic powder in a pinch.
• Lemon: Both the juice and zest keep the flavors bright.
• Herbs: Dried basil, parsley, and Italian seasoning.
• Olive oil and butter: Olive oil coats the zucchini, and a little melted butter adds richness.
• Salt and pepper: To season the zucchini evenly.

Full amounts are in the recipe card below.

How to Make Air Fryer Zucchini Foil Packets

Step 1: Slice the zucchini. Trim the ends and cut the zucchini into even ¼-inch rounds so every slice cooks at the same rate.

Step 2: Season. In a large bowl, toss the zucchini with olive oil, melted butter, garlic, lemon juice, lemon zest, basil, parsley, Italian seasoning, salt, pepper, and most of the Parmesan. Save a little Parmesan for the top.

Step 3: Build the packets. Tear off four 12-inch sheets of heavy-duty foil. Divide the zucchini among them, mounding it in the center, and sprinkle with the remaining Parmesan.

Step 4: Seal. Bring the long sides of the foil together over the zucchini and fold them down twice to seal, leaving a little room inside for steam. Then fold and crimp the short ends.

Step 5: Air fry. Preheat the air fryer to 350°F for 3 to 5 minutes. Place the packets in the basket in a single layer, seam side up, and air fry for 15 to 25 minutes, checking at 15, until the zucchini is tender but still has a little bite.

Step 6: Open carefully. Let the packets rest for a minute, then open them away from your face, since the steam is very hot. Top with extra Parmesan and serve right in the foil or on a plate.

Tips for the Best Zucchini Foil Packets

• Slice evenly: ¼-inch rounds cook through without turning mushy. Thinner slices cook faster.
• Use heavy-duty foil: It’s less likely to tear when you fold, flip, or lift the packets.
• Don’t overfill: A single, even layer of zucchini in each packet cooks more evenly than a tall pile.
• No flipping needed: Keep the packets seam side up so the butter and cheese stay inside.
• Check early: Air fryers vary, so open one packet at 15 minutes and test a slice with a fork.
• Keep foil in the basket: Make sure the packets sit flat in the basket and don’t touch the heating element.

Variations

• Add more vegetables: Thinly sliced yellow squash, bell peppers, red onion, or cherry tomatoes all cook in the same time as the zucchini.
• Spicy: Add a pinch of red pepper flakes before sealing.
• Pesto: Swap the dried herbs for a spoonful of basil pesto in each packet.
• Cheesy: Top with shredded mozzarella along with the Parmesan.
• Ranch: Replace the herbs with dry ranch seasoning.

Zucchini Foil Packets in the Oven or on the Grill

The same packets work without an air fryer. Use these as starting points and check for tenderness.

• Oven: Place the packets on a baking sheet and bake at 400°F for 20 to 25 minutes.
• Grill or Blackstone: Cook over medium-high heat for 10 to 15 minutes, keeping the packets seam side up.

Make-Ahead, Storing, and Reheating

• Make ahead: Assemble and seal the packets, then refrigerate for up to 1 day. Add a few minutes to the cook time if they go in cold.
• Store: Refrigerate leftover cooked zucchini in an airtight container for 3 to 4 days.
• Reheat: Rewrap in foil and air fry at 350°F for 3 to 5 minutes, or microwave until warm.
• Freezing: Not recommended; zucchini turns watery and soft after thawing.

What to Serve With Zucchini Foil Packets

These go with almost any main. For an easy weeknight plate, pair them with Air Fryer Salmon Steaks, juicy Air Fryer Butterflied Chicken Breast, or a keto-friendly Air Fryer Flat Iron Steak.

Making a full foil packet dinner? Cook these alongside my Air Fryer Sausage Foil Packets or Air Fryer Mexican Chicken Foil Packet.

Still have extra zucchini? Turn it into cheesy Air Fryer Zucchini Squares, kid-friendly Air Fryer Zucchini Tots, or fudgy Air Fryer Zucchini Brownies.

Air Fryer Zucchini Foil Packets FAQs

Is it safe to use foil in the air fryer? Yes. Keep the packets flat in the basket, don’t let foil touch the heating element, and leave space around them so air can circulate.

How long do zucchini foil packets take in the air fryer? About 15 to 25 minutes at 350°F, depending on slice thickness and your air fryer. Start checking at 15 minutes.

Do I need to flip the foil packets? No. Leave them seam side up so the butter and cheese stay inside.

Will the zucchini get mushy? Not if you slice it ¼ inch thick and pull it as soon as it’s fork-tender. Thin slices and long cook times are what make it soggy.

Can I make the packets ahead of time? Yes. Assemble and refrigerate them for up to 1 day, then air fry straight from the fridge, adding a few minutes.

Are zucchini foil packets keto? Yes. Zucchini, Parmesan, olive oil, and butter are all low in carbs, so this is an easy keto side.

Can I add other vegetables? Yes. Yellow squash, bell peppers, onions, and cherry tomatoes work well. Slice them thin so they cook in the same time.