Grilled potatoes and onions are a simple yet delicious side dish that pairs well with almost any main course. The smoky flavor from the grill enhances the natural sweetness of the onions and the earthiness of the potatoes, making this a crowd-pleaser at any barbecue or family dinner.
Most of the ingredients in this recipe are common pantry staples. However, if you don't usually keep olive oil on hand, you might need to pick some up at the supermarket. It's a versatile oil that adds a rich flavor and helps to crisp up the potatoes and onion on the grill.

Ingredients for Grilled Potatoes and Onion Recipe
Potatoes: These form the bulk of the dish and provide a hearty, starchy base.
Onion: Adds a sweet and savory flavor that complements the potatoes.
Olive oil: Helps to crisp up the potatoes and onions while adding a rich flavor.
Salt: Enhances the natural flavors of the ingredients.
Black pepper: Adds a bit of heat and complexity to the dish.
Technique Tip for This Recipe
When preparing grilled potatoes and onions, ensure that the potatoes are sliced evenly to promote uniform cooking. Uneven slices can lead to some pieces being undercooked while others may become too soft. Additionally, when creating the foil packet, make sure to leave some space for steam to circulate. This helps in cooking the vegetables more evenly and enhances their flavor.
Suggested Side Dishes
Alternative Ingredients
potatoes - Substitute with sweet potatoes: Sweet potatoes offer a slightly sweeter flavor and a different nutritional profile, adding a unique twist to the dish.
potatoes - Substitute with turnips: Turnips have a similar texture when cooked and provide a slightly peppery taste, making them a good alternative.
onion - Substitute with shallots: Shallots have a milder and sweeter flavor compared to onions, which can add a subtle complexity to the dish.
onion - Substitute with leeks: Leeks offer a milder and more delicate flavor, which can be a pleasant variation in the recipe.
olive oil - Substitute with avocado oil: Avocado oil has a high smoke point and a neutral flavor, making it a great alternative for grilling.
olive oil - Substitute with grapeseed oil: Grapeseed oil also has a high smoke point and a light, clean taste, suitable for grilling.
salt - Substitute with sea salt: Sea salt can provide a different texture and a slightly different mineral content, enhancing the flavor profile.
salt - Substitute with kosher salt: Kosher salt has larger grains and a purer taste, which can be easier to control when seasoning.
black pepper - Substitute with white pepper: White pepper has a milder flavor and is less visually prominent, which can be preferable in some dishes.
black pepper - Substitute with cayenne pepper: Cayenne pepper adds a bit of heat and a different flavor profile, for those who enjoy a spicier dish.
Other Alternative Recipes Similar to This Dish
How to Store / Freeze This Dish
- Allow the grilled potatoes and onion to cool to room temperature. This helps prevent condensation, which can make the vegetables soggy.
- Transfer the cooled potatoes and onion into an airtight container or a resealable plastic bag. Ensure you remove as much air as possible to maintain freshness.
- Label the container or bag with the date to keep track of how long they have been stored.
- Store the container in the refrigerator if you plan to consume the grilled vegetables within 3-4 days.
- For longer storage, place the container in the freezer. The grilled potatoes and onion can be frozen for up to 3 months.
- When ready to reheat, thaw the frozen potatoes and onion in the refrigerator overnight.
- Reheat the grilled vegetables in a preheated oven at 350°F (175°C) for about 10-15 minutes, or until heated through. Alternatively, you can reheat them in a skillet over medium heat, stirring occasionally, until warmed.
- Avoid microwaving as it can make the potatoes and onion mushy.
How to Reheat Leftovers
Oven Method: Preheat your oven to 350°F (175°C). Spread the leftover grilled potatoes and onion on a baking sheet. Cover with aluminum foil to retain moisture and heat for about 15-20 minutes, or until warmed through. This method helps maintain the crispy texture of the potatoes.
Stovetop Method: Heat a non-stick skillet over medium heat. Add a small amount of olive oil to the pan. Once the oil is hot, add the leftover grilled potatoes and onion. Stir occasionally and cook for about 5-10 minutes until heated through. This method can give a nice, slightly crispy edge to the potatoes.
Microwave Method: Place the leftover grilled potatoes and onion in a microwave-safe dish. Cover with a microwave-safe lid or a damp paper towel to prevent drying out. Microwave on high for 1-2 minutes, stirring halfway through. Continue to heat in 30-second intervals if needed until fully warmed.
Air Fryer Method: Preheat your air fryer to 350°F (175°C). Place the leftover grilled potatoes and onion in the air fryer basket in a single layer. Heat for about 5-7 minutes, shaking the basket halfway through to ensure even heating. This method helps to restore some of the original crispiness.
Grill Method: Preheat your grill to medium heat. Place the leftover grilled potatoes and onion in a grill-safe dish or wrap them in aluminum foil. Grill for about 5-10 minutes, stirring occasionally, until heated through. This method can help to reintroduce some of the smoky flavor.
Best Tools for This Recipe
Grill: Used to cook the potatoes and onion, providing a smoky flavor and crisp texture.
Aluminum foil: Essential for creating a packet to hold the potatoes and onion, ensuring even cooking and easy cleanup.
Large bowl: Used to toss the sliced potatoes and onion with olive oil, salt, and pepper for even seasoning.
Knife: Necessary for slicing the potatoes and onion into even pieces.
Cutting board: Provides a stable surface for safely slicing the potatoes and onion.
Tongs: Useful for handling the foil packet on the grill, ensuring you don't burn yourself.
Measuring spoons: Used to measure out the olive oil, salt, and black pepper accurately.
Oven mitts: Protects your hands when handling the hot foil packet from the grill.
How to Save Time on Making This Recipe
Pre-slice ingredients: Slice the potatoes and onion in advance and store them in an airtight container in the fridge.
Use a mandoline: A mandoline slicer ensures uniform slices quickly, saving prep time.
Preheat the grill: Start preheating your grill while you prepare the ingredients to save time.
Foil packets in advance: Assemble the foil packets ahead of time and store them in the fridge until ready to grill.
Batch cooking: Grill extra potatoes and onions for future meals, saving time on future preparations.

Grilled Potatoes and Onion Recipe
Ingredients
Main Ingredients
- 4 large Potatoes sliced
- 1 large Onion sliced
- 2 tablespoon Olive Oil
- 1 teaspoon Salt to taste
- 0.5 teaspoon Black Pepper to taste
Instructions
- 1. Preheat your grill to medium-high heat.
- 2. Slice the potatoes and onion.
- 3. In a large bowl, toss the potatoes and onion with olive oil, salt, and pepper.
- 4. Place the potatoes and onion on a large piece of aluminum foil. Fold the foil over and seal the edges to create a packet.
- 5. Grill the packet for about 30 minutes, or until the potatoes are tender.
- 6. Carefully open the packet and serve hot.
Nutritional Value
Keywords
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