Grilled Onions and Potatoes – Easy Foil Packet Side Dish for the Grill
Grilled Onions and Potatoes are one of the easiest and most flavorful side dishes you can make for backyard barbecues, camping trips, or family cookouts. Thinly sliced potatoes and sweet onions are coated in a creamy Parmesan garlic seasoning, wrapped in foil packets, and grilled until perfectly tender. The result is a buttery, savory side dish with soft potatoes, sweet caramelized onions, and rich cheesy flavor in every bite.
One of the reasons this recipe is so popular is its convenience. Everything is prepared ahead of time, sealed inside individual foil packets, and cooked directly on the grill with almost no cleanup. The foil locks in moisture, allowing the potatoes to become tender while the onions soften and release their natural sweetness. The creamy garlic Parmesan coating blends with the vegetables as they cook, creating a rich and delicious flavor that’s perfect alongside grilled meats.
This grilled potato foil packet recipe is also incredibly versatile. It pairs perfectly with grilled steak, burgers, chicken, pork chops, sausages, seafood, or roasted vegetables. Because the packets can be assembled several hours ahead, they are ideal for camping, picnics, meal prep, and outdoor gatherings where simple recipes make entertaining much easier.
Ingredients:
1 cup mayonnaise.
¼ cup grated Parmesan cheese.
3 cloves garlic, minced.
½ teaspoon paprika.
¼ teaspoon red pepper flakes.
¼ teaspoon salt.
¼ teaspoon black pepper.
3 large baking potatoes, sliced into ¼-inch rounds.
1 large sweet onion, sliced.
4 large sheets aluminum foil.
Cooking spray.
Instructions:
Step 1
Preheat the grill to medium heat.
Step 2
Lightly oil the grill grates.
Step 3
Mix the mayonnaise, Parmesan cheese, garlic, paprika, pepper flakes, salt, and black pepper in a large bowl.
Step 4
Add the sliced potatoes and onions.
Step 5
Toss until everything is evenly coated.
Step 6
Lay four sheets of aluminum foil on a flat surface.
Step 7
Spray each sheet lightly with cooking spray.
Step 8
Divide the potato mixture evenly between the foil sheets.
