Summer is the perfect time to gather with friends and family around the grill, but sometimes you want quick, crispy sides without heating up the entire kitchen. The Ninja DoubleStack XL Smart Air Fryer is your ideal summer kitchen companion, offering versatile cooking and large capacity to prepare multiple dishes simultaneously.
Get kitchen gear delivered free — and shop member deals
- Fast, free delivery on millions of items
- Access to Prime Big Deal Days deals on October 6–7
- Prime Video, Amazon Music and more included
In this guide, we’ll show you how to make flavorful grilled zucchini and crispy sweet potato fries in the air fryer — perfect accompaniments for your summer BBQ. Follow these simple steps to serve up delicious sides in record time!
Our top pick at a glance

Ninja DoubleStack XL Smart Air Fryer
- ✔ Weight: 15 lbs
- ✔ Power: 1750W
- ✔ Color Options: Stainless Steel
Preparing the Ingredients
Start by gathering fresh vegetables for your sides. For grilled zucchini, slice two zucchinis into 1/4-inch thick rounds. For sweet potato fries, peel and cut two large sweet potatoes into 1/4-inch strips. Season both with olive oil, salt, pepper, and your favorite herbs or spices.
Using the Ninja DoubleStack XL, you can prepare both sides at once by utilizing its two independent baskets. Place the zucchini in one basket and the sweet potato fries in the other, ensuring they are evenly spread out for uniform cooking.
Cooking the Sides in the Ninja DoubleStack XL
- Set the air fryer to 400°F (204°C). Use the ‘Air Fry’ function for both baskets. The DoubleStack’s smart doneness control will help you monitor cooking times precisely.
- Start the cooking process and set the timer for about 15 minutes. During cooking, shake or turn the baskets halfway through to ensure even crisping.
- Use the built-in thermometer to check that the zucchini is tender and the sweet potato fries are crispy before removing from the baskets.
The space-saving design allows you to cook both sides simultaneously, saving time and energy during your summer meal prep.
Serving and Tips for Perfect Results
Once cooked, transfer the sides to a serving dish. For added flavor, sprinkle with fresh herbs or a squeeze of lemon juice. Serve alongside grilled meats or as part of a summer picnic spread.
Tips for success include:
- Preheating the air fryer for a few minutes before cooking ensures crispy results.
- Spacing the vegetables evenly in the baskets promotes uniform cooking.
- Experiment with different seasonings to suit your summer menu.
The Ninja DoubleStack XL’s multiple functions and large capacity make it easy to prepare a variety of meals, making your summer gatherings effortless and delicious.
More Details on Our Top Picks
Ninja DoubleStack XL Smart Air Fryer

The Ninja DoubleStack XL Smart Air Fryer is a game-changer for summer cooking, offering large capacity and multi-food cooking with smart features for perfect results. It’s ideal for quick, crispy sides and family-sized meals with less fat.</p>
Pros:
- Cooks multiple foods at once
- Space-saving stacked design
- Versatile 6-in-1 functions
- Smart doneness control
Cons:
- Complex setup for beginners
- May be bulky for very small kitchens
- Higher price than basic air fryers
Best for: Families and hosts who love quick, crispy summer sides
Not ideal for: Anyone with limited kitchen space or on a tight budget
Bottom line: A versatile, large-capacity air fryer that simplifies summer meal prep with smart controls.
Affiliate disclosure: As an Amazon Associate we earn from qualifying purchases. Prices and availability are accurate as of the time of publishing.
Halloween Picks
halloween
As an affiliate, we earn on qualifying purchases.
