Our easy air fryer potatoes and onions recipe is the perfect cheap side dish that goes with any dinner. Amp up your air fryer onions with some russet, red, Yukon petite medley potatoes for tender deliciousness.

Jump To
It was time for some potatoes and onions the other night to go with pork chops. Picked up a bag of mini taters and one white and yellow onion and that was it. With a little drizzle of olive oil and seasonings we were off. Now this has to be our favorite air fryer recipe to serve with all the things. Period.
If you haven’t made any sort of roasted potatoes in air fryer yet there are SO many possibilities. From wedges, to diced, breakfast potatoes to enjoy in the morning, shredded frozen hash browns. I could go on and on but you get my drift right? Any which way you cut these babies they are a super cheap and feel good choice.
Ninja Foodi Potatoes and Onions
If you have been following me online at all you know that I use my Ninja foodi often. I do have many other devices too like a Cosori and AirWave. They all work basically the same so it doesn’t matter what brand you have at home. The biggest difference is how much you can fit in at a time.
Normally I will say do not overlap your food, this one is different. If you didn’t you wouldn’t be able to fit much and you’d be air frying forever, that doesn’t make sense. Instead it will work just fine as long as you follow my method below where you shake the basket every 5 minutes. This will give it an opportunity to rotate and crisp.

What are the best potatoes to air fry?
For this I like to use a bag of petite medley potatoes, 24 oz total with different colors. I will cut the russet or red potatoes bite sized like you see here so they are done at the same time. Sometimes there are purple potatoes in there too.
Can you use sweet potatoes?
If you like yours to be really crispy then add 2 to 3 more minutes and spray with some olive oil on the top. You could do this same thing with just russet potatoes if you prefer or make air fryer sweet potato cubes for a sweeter side.
Are yellow or white onions better?
I will add 2 white onions typically but honestly I think they both give this dish a great texture and flavor so I buy whichever is on sale with some minced garlic too.
Olive oil is used to coat the outsides to get the salt and pepper and other seasonings like Lawry’s works well, Old Bay to stick well and to crisp as well.
That is seriously about it. A bit like our air fryer breakfast potatoes but cut a bit larger without the cheese on top.
How Long to Cook Diced Potatoes and Onions in Air Fryer
20 minutes is just about right if you do it this way and make the whole bag. That will be enough of an easy side dish for about 5 people or so. Have fewer than that? You can half this recipe too if you want and decrease the time by about 5 minutes. Still shake every 5 until tender.
Just like our air fryer fried potatoes you need to give this more time than usual to get nice and tender. The larger you cut your pieces the longer they will take. I suggest slicing your petite potatoes into 6-8 pieces each. Some in the bag will be larger than others that is why there is a range.
To make sure we are on the same page here I provided an image below as to what I mean by bite size. This is just about right for the whole bag plus 2 onions sliced to get fork tender with enough seasonings for flavor. The biggest thing is each piece needs to be the same size so you don’t have any raw.

How to Make Diced Potatoes Crispy in Air Fryer
The #1 reason why people have issues with this is that they weren’t dried after cutting. If there is moisture on the outsides it will prevent that crispiness you want. Another issue that may be the case is that you added too many. Ideally you want them in a single layer so the hot air can circulate properly.
Can you add other vegetables?
You could throw air fryer corn on the cob (cobs cut in half) together because they can be done near the same time. Game changer y’all. Gives me the ability to cook multiple things together all at the same time and serve them for dinner where we can eat together.
Pop the best baked salmon with dry rub in the oven with this and a healthy meal is served.

Smothered Potatoes and Onions
If you want to make this over the top you can smother them some would say with shredded cheese. I like pepper Jack to add a bit of heat or sharp cheddar is great too. Once the taters are fork tender coat the top with cheese and add 2 more minute or until it bubbles and melts on the top and then serve!


Air Fryer Potatoes and Onions Recipe
Equipment
- 1 air fryer
- 1 Bowl
Ingredients
- 24 oz potatoes, mini medley potatoes, cubed into 6-8 pcs. each
- 2 small onions, sliced
- 1/4 cup olive oil
- 1 tsp seasoned salt
- 1/4 tsp paprika
- 1/4 tsp chili powder
Instructions
- Preheat air fryer to 380 degrees F for 5 minutes. Rinse and dry mini potatoes well with paper towels, slice into 6-8 pieces each, smaller would need fewer slices. Make bite size.
- Slice onions into medium chunks, put both into a bowl and toss with olive oil until coated. Sprinkle with seasonings and toss again.
- Pour into air fryer basket for 20 minutes total tossing every 5 minutes. Check after 20 to ensure largest pieces are fork tender, if you want them crispier spray with olive oil and add another 2-3 minutes.
Video
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.













Very tasty! The hardest part is cutting up all the potatoes. I like to do this step a couple of days early. Then I “marinate” all the ingredients together in a ziplock bag. To cook, simply empty the bag (or, a portion of the bag) into the air fryer and cook. It took mine more like 25 minutes.
Good thought!