Grilled Potatoes

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Grilled Potatoes cooked in foil packets with onions, mushrooms, butter, and herbs are tender, smoky, and some of the best potatoes you'll ever try.

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These easy Grilled Potatoes in Foil Packets are the best summer side dish. Most people overlook potatoes when thinking about grilling, but they turn out so good, and cooking them on the grill means no extra dishes. Make some Grilled Brussels Sprouts or Grilled Asparagus.

For some reason when we think about grilling, most of us don't think about grilling potatoes but they are so good and so easy. They get tender and crispy and slightly smoky. Trust me. Once you start making these grilled potato packets, there is no turning back. 

Plus they are so versatile. Switch up the spices and herbs you use, make it with or without mushrooms, serve fun topping options on the side. The options are endless. 

Here's how we serve them in our house. First I assemble the individual potato packed. Mine is packed with onions, mushrooms, and plenty of herbs.  Then I make a couple of packets with just potatoes and onions, and one final packet with just potatoes. I also adjust the seasoning, adding more herbs in mine and less for the kids. 

Then while they are on the grill, I get the toppings ready. This includes chopped green onions, shredded cheese, bacon bits, and some Greek yogurt or sour cream. Everyone gets to top their own potatoes, just like a baked potato bar, but from the grill. 

Grilled potatoes and onions in a foil packet on the grill.

Recipe Ideas and Tips

  • Ranch seasoning: It's hard to share a potato recipe without someone asking about ranch seasoning. These are delicious with ranch seasoning, just shake it over the potatoes and give it a stir to coat them before closing the foil packets.
  • Cajun seasoning: For a spicier option, consider using some homemade Cajun seasoning. You could also use grill seasoning, taco seasoning, or any other spice mix you like. 
  • Add more vegetables: This recipe works well with other vegetables as well. They can be added right to the packets, just consider the cooking time if using quick-cooking vegetables so they don't get mushy.
  • Try it with sweet potatoes: For a different flavor option, swap in some sweet potatoes for regular potatoes. You can also use baby potatoes, red potatoes, or fingerlings.
  • Swap in sweet or red onions: To add a touch of sweetness, use red onion or Vidalia onion instead of the traditional yellow or white onion.
  • Add cheese: During the last 5 minutes of cooking, open up the packets and add a layer of cheese.
  • Toppings: Set up all kinds of yummy toppings to serve with the packets including green onions, bacon bits, cheese, sour cream, and more. It's like a baked potato bar with grilled potatoes. 
  • Leftovers: If you are lucky enough to have leftovers, use them in this potato salad recipe for a delicious picnic side dish.

How long do potatoes take on the grill?

The length of time potatoes take on the grill depends largely on how they are cut and their thickness. For thinly sliced potatoes, they will take about 20 minutes on the grill over medium or indirect heat. They may take a little longer if they are more thickly sliced. 

It can be difficult to cook potatoes on the grill without foil since they tend to burn on the outside before being tender inside. If you want to grill potato slices or wedges directly on the grill, make sure to par-boil them beforehand so they are inside will be tender. 

Can I add more vegetables?

These grilled potatoes work great with all different types of vegetables and you can experiment with adding different vegetables to the packets. Ideally, try to choose vegetables that won't get too mushy when cooked like carrots, mushrooms, squash, onions, cabbage, or corn. 

If you are using quicker-cooking vegetables like zucchini, summer squash, asparagus, or green beans, it may be best to cook them in their own foil packets since they cook much more quickly. They will still work with the potatoes, but they will be on the softer side. 

Do these packets work with sweet potatoes?

These work great with all types of potatoes including sweet potatoes. Favorites include grilling red potatoes, baby potatoes, fingerling potatoes, or sweet potatoes. 

Potatoes cooked on the grill in a foil packet with onions, mushrooms, cheese, and bacon bits.

Can these grilled potatoes be baked?

If you aren't using the grill, these also work great in the oven. Just preheat the oven to 375 degrees and cook for 35-45 minutes or until the potatoes are cooked through and tender. Open up the packets and broil before serving to add some crispy edges. 

More grilled vegetable recipes

The Recipe
Grilled potatoes with onions, mushrooms, and butter on a plate.

Grilled Potatoes

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  • 2 Russet potatoes, sliced into rounds (or other)
  • 1 onion, sliced thin
  • 1 cup sliced mushrooms
  • 2 tbsp butter (or ghee or olive oil)
  • 1/2 tsp seasoned salt
  • 1/2 tsp black pepper

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Heat grill to medium-high heat. Lay 4 pieces of heavy duty aluminum foil on tray or cutting board. Wash and cut potatoes into slices, about 1/4 inch thick. Add onions and mushrooms (if desired) on top of potatoes Cut butter into pieces and add 1/2 tbsp of butter to each packet.

Sliced potatoes and onions on a piece of foil.

Cut butter into pieces and add 1/2 tbsp of butter to each packet. Combine the Italian seasoning, seasoning salt, and pepper. Sprinkle over the potatoes.

Foil packets with potatoes, onions, butter, and spices.

Close the packets, sealing them fully. Place on the grill and cook for 20-30 minutes until cooked through. Turn the packets and give them a few shakes during cooking.

Grilled potato packets sealed and on the grill.

Carefully open the grilled potato packets. Taste and season if needed.

Grilled potatoes and onions in an open foil packet on the grill.
Nutritional Facts
Serving Size: 1 packet
Amount Per Serving
Calories 154
Calories from Fat 54
% Daily Value *
Total Fat 6g
Saturated Fat 4g
Monounsaturated Fat 0g
Polyunsaturated Fat 0g
Cholesterol 15mg
Sodium 114mg
Total Carbohydrate 24g
Dietary Fiber 3g
Sugars 2g
Protein 3g

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Nutritional Values provided are estimates only and may vary based on the preparation method.

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About the author Meet Kristen McCaffrey
Hi, I’m the cookbook author, recipe developer, and food enthusiast behind Slender Kitchen. I am obsessed with making healthy food that is easy to prepare and absolutely delicious. Meal planning is my secret weapon and I hope I can make meal time easier for you with our tried and tested recipes and foolproof meal plans. Learn More
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