Grilled Potatoes and Onions in Foil – The Ultimate Garlic Parmesan Side Dish
If you’re looking for an easy, flavorful, and foolproof grilling recipe, these Garlic Parmesan Grilled Potatoes and Onions are about to become your new favorite side dish. Simple ingredients, bold flavor, and almost zero cleanup make this recipe a must-have for summer cookouts, family dinners, and backyard barbecues.
This foil-packet potato recipe is perfect when you want tender potatoes with crispy edges, sweet caramelized onions, and rich garlic-Parmesan flavor—all cooked right on the grill. No oven needed, no mess, and no stress.
Why You’ll Love This Grilled Potato Recipe
- Budget-friendly ingredients you already have at home
- Easy prep with just one foil packet
- Perfect for grilling, camping, or outdoor meals
- Crispy on the outside, soft and fluffy on the inside
- Pairs beautifully with steak, chicken, burgers, or grilled fish
Ingredients You’ll Need
- Potatoes (Yukon Gold or red potatoes work best), sliced or cubed
- Onions, thinly sliced
- Fresh garlic, minced
- Olive oil or melted butter
- Grated Parmesan cheese
- Salt and black pepper
- Optional: Italian seasoning, paprika, or red pepper flakes
- Fresh parsley for garnish
How to Make Garlic Parmesan Grilled Potatoes & Onions
Start by preheating your grill to medium heat. While the grill warms up, wash and slice your potatoes into even pieces so they cook evenly. Thinly slice the onions and mince the garlic.
In a large bowl, combine the potatoes and onions with olive oil (or melted butter), garlic, salt, pepper, and your favorite seasonings. Toss until everything is well coated. Sprinkle generously with Parmesan cheese and mix again for maximum flavor.
Lay out a large sheet of heavy-duty aluminum foil. Place the potato mixture in the center and fold the foil tightly to create a sealed packet. This traps steam and helps the potatoes cook until perfectly tender.
Place the foil packet on the grill and cook for about 25–35 minutes, turning once halfway through. When the potatoes are fork-tender, carefully open the foil and grill for an extra 5 minutes if you want crispy edges.
Finish with more Parmesan cheese and a sprinkle of fresh parsley before serving.
Tips for Perfect Grilled Potatoes Every Time
- Cut potatoes evenly to avoid undercooked pieces
- Use heavy-duty foil to prevent tearing
- Don’t overcrowd the packet—spread everything in a thin layer
- For extra crispiness, open the foil near the end of cooking
Serving Ideas
These grilled potatoes and onions are incredibly versatile. Serve them alongside juicy steaks, grilled chicken, barbecue ribs, or even as a vegetarian main with a fresh salad. They’re also great for picnics, camping trips, and holiday cookouts.
Final Thoughts
This Garlic Parmesan Grilled Potatoes and Onions in Foil recipe proves that simple ingredients can create unforgettable flavor. It’s easy, comforting, and always a crowd-pleaser. Once you try it, you’ll find yourself making it again and again.
Save this recipe, share it with friends, and fire up the grill—you’re going to love every bite! 🥔🔥🧀
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