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    Grilled Potatoes and Onions in Foil

    Published: Apr 9, 2023 by sandi · This post may contain affiliate links · 12 Comments

    1701 shares
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    Table of Contents

    • Sliced Potatoes on the Grill
    • Ingredients for Grilled Potatoes
    • How to Grill Potatoes in a Foil Pan
    • Tips and Tools
    • FAQs
    • Life-Changing Grilled Potatoes in a Foil Pan
    • Grilled Potatoes in a Foil Pan

    Sliced Potatoes on the GrillGrilled sliced potatoes and onions fill a foil pan. The words, "Grilled Potatoes: Great for a Crowd!" overlay the picture.

     

    The first time I tasted these Savory Grilled Potatoes from Taste of Home, I heard angels sing. (I'm only partially kidding.)

    My friend, Carolyn, made them for me, and basically after that night, I forced her to make them for me every time we got together. I loved them so much so that she named them, "Sandi's potatoes."

    Eventually I started making them myself, and I wondered, What could be better than these grilled potatoes? 

    The answer turned out to be a WHOLE LOT of grilled potatoes and onions in a foil pan.

    This post contains affiliate links which means that if you make a purchase through one of these links, I may earn a small commission -- at no extra cost to you. Read more in my privacy policy.

    I took a recipe for two (in a foil packet) and turned it into a recipe for a crowd using a disposable foil pan, making a few changes along the way. Genius, if I do say so myself. If you're looking for potato recipes for the grill, you can't go wrong with this one. I'd even venture to say that these are the BEST grilled potatoes you'll ever try!

    Want to learn how to make them for your next cookout? Read on!

    Ingredients for Grilled Potatoes

    All of the ingredients you need for Grilled Potatoes in separate bowls: russet potatoes, mayonnaise, sliced onions, parmesan cheese, salt, pepper, paprika, and garlic.

    • Russet Potatoes -- make sure to wash and scrub them well or if you prefer, you can peel them.
    • Onions -- these are optional but are so good grilled. Sometimes I make a pan with onions and a pan without.
    • Mayonnaise -- don't be tempted to substitute anything else for this. The mayonnaise makes the recipe.
    • Grated Parmesan Cheese -- I have substituted cheddar cheese in a pinch, but parmesan is the best.
    • Garlic -- I use fresh but you can use powdered if it's all you have.
    • Spices -- a bit of paprika, salt, and pepper give the potatoes the extra color and flavor they need. (You can sub smoked paprika if you'd like.)
    • Butter -- pats of butter on top give extra flavor and fat to cook the potatoes in.

    How to Grill Potatoes in a Foil Pan

    Step by step photos for making grilled potatoes: a bowl of sliced potatoes, a bowl with mayonnaise and all the spices, a foil pan with sliced potatoes, onions, and the mayo seasoning, and the pan of potatoes and onions with pats of butter on top.

    1. Preheat your grill.
    2. Cut each potato in two vertically and then slice it thinly into half-moon shapes.
    3. In a medium bowl, mix mayonnaise, parmesan cheese, garlic, paprika, salt, and pepper.
    4. Spray two disposable foil pans with baking spray. Divide the potatoes and onions (if using) evenly into the two pans.
    5. Divide the mayonnaise mixture in two and mix well with the potatoes and onions.
    6. Divide butter pats in two and spread them across the potatoes and onions evenly.
    7. Cover tightly with aluminum foil and cook on medium heat for 35-40 minutes, stirring halfway through.
    8. Check the potatoes for doneness. If they are tender, uncover them and enjoy!

     

    Tips and Tools

    A large foil pan filled with grilled potatoes and onions sits at a 45 degree angle. Small bowls that once held ingredients surround it.

    • You'll need two 9x13 foil pans to make this recipe. The original recipe used foil packets, but with this amount of potatoes, it's hard to get them to cook evenly in a foil packet. Foil pans work perfectly.
    • If you want to grill your potatoes faster, you can partially cook them ahead of time. I've done this in the microwave both whole and sliced, and either works. Then, after they're partially cooked, you can add the mayonnaise mixture (very carefully) and grill over medium heat for 20 minutes.
    • When I'm making these for families, I often make one pan with onion and one without for the kids.
    • If you omit the onion, I suggest adding ½ teaspoon onion powder to the recipe.

    FAQs

    A wooden spoon filled with grilled potatoes and onions held above an aluminum pan filled with grilled potatoes and onions.

    Can you substitute a different kind of potato?

    I've never tried, but I'm sure you could. I always have russet potatoes on hand so that's what I've always used. If your slices are bigger than ¼ inch, you may need a longer cook time.

    How long does it take to grill potatoes?

    These potatoes need to cook for 35-40 minutes. You'll want to stir them half way through, re-cover them, and then check them for doneness after 35 minutes. If they need more time, just re-cover them again for a few more minutes. 

    These Grilled Potatoes and Onions in Foil are a great side dish anytime you're grilling out. They can cook on one side of your grill while you flip burgers or chicken on the other side. They're the perfect side for your next casual get-together!

    Let me know if you make them -- just be warned, they may change your life!

    A closeup of a foil pan filled with grilled potatoes and onions.
    5 from 2 votes
    Print

    Life-Changing Grilled Potatoes in a Foil Pan

    Delicious grilled potatoes for a crowd made easy, thanks to a disposable foil pan!

    Adapted from Taste of Home

    Course Side Dish
    Cuisine American
    Keyword grilled potatoes and onions, grilled potatoes in foil, summer
    Prep Time 20 minutes
    Cook Time 40 minutes
    Total Time 1 hour
    Author sandi

    Ingredients

    • 8 russet potatoes
    • 2 cups mayonnaise
    • 6 Tablespoons grated Parmesan cheese
    • 4 cloves garlic, minced
    • 1 teaspoon paprika
    • 2 teaspoons salt
    • 1 teaspoon pepper
    • 1 onion, sliced thinly into rings (optional)
    • 3 Tablespoons butter, sliced into thin pats

    Instructions

    1. Preheat the grill.

    2. Cut each potato in two horizontally and slice very thinly.

    3. In a medium bowl, mix together the mayonnaise, parmesan cheese, garlic, paprika, salt, and pepper.

    4. Spray two disposable foil pans with baking spray. Divide the potatoes and onions evenly between the two pans.

    5. Divide the mayonnaise mixture in two and put each portion into a pan of potatoes and onions. Mix together well.

    6. Divide the butter evenly and place the pats all over the potatoes and onions.

    7. Cover tightly with aluminum foil and cook over medium heat for 35-40 minutes, stirring well once, halfway through.

    Grilled Potatoes in a Foil Pan

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    Reader Interactions

    Comments

    1. Cindy

      May 21, 2019 at 1:36 pm

      Thank you. This potato recipe looks delicious! I will try this when we get the grill out. It was only in the 40’s yesterday, so it might be awhile.

      Reply
      • sandi

        May 22, 2019 at 11:06 am

        Wow -- still cold where you are! I think you'll love them once it's warm enough to enjoy them. Thanks for stopping by!

        Reply
    2. Denise

      May 21, 2019 at 5:12 pm

      These sound great! I'm adding them to the Memorial Day menu right now. Thanks for sharing.

      Reply
      • sandi

        May 22, 2019 at 11:07 am

        Awesome -- let me know how you like them!

        Reply
    3. Brenda Fuller

      September 02, 2019 at 9:17 pm

      These were a hit tonight for our family! Thought we would have a ton left over but they were almost gone! So good!

      Reply
      • sandi

        September 03, 2019 at 4:00 pm

        So glad you enjoyed them!

        Reply
    4. BradMN

      June 11, 2020 at 4:31 pm

      Add cabbage. 🙂
      I grew up with this, we had it at least once a week... but always had cabbage in it. So yummy! You will have to tell me what you think if you try it.

      Reply
      • sandi

        August 10, 2022 at 11:57 am

        Oh, wow -- never thought about adding cabbage! I will have to add it to one pan sometime and see what it's like. Thanks for the suggestion!

        Reply
    5. Kim

      July 08, 2022 at 4:44 pm

      Can you freeze these ?

      Reply
      • sandi

        August 10, 2022 at 11:06 am

        I don't think these would freeze well, Kim.

        Reply
    6. Brie

      October 11, 2022 at 1:09 pm

      5 stars
      Huge hit with my family, they all LOVED these potatoes! Thanks for the recipe 🙂

      Reply
      • sandi

        April 09, 2023 at 4:11 pm

        Thanks so much for trying it!

        Reply

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