These straightforward grilled peppers and onions are my go-to summer season aspect dish, and I make them in a foil pack not less than a number of occasions every week all grilling season lengthy. You get completely tender, caramelized veggies with completely zero cleanup — no grill basket, no pepper strips falling by way of the grates, and no scrubbing the grill afterward. Simply 5 easy elements and about 25 minutes on the grill!

These straightforward grilled peppers and onions are made in a easy foil pack with simply 5 elements — bell peppers, onion, olive oil, garlic, and salt and pepper. The foil traps steam and warmth so the veggies flip completely tender and caramelized with none fuss. The best, most hands-off summer season aspect dish for any cookout.
⏱️ Whole: 25 minutes · 🍽️ Yield: 4 servings · 📊 Stage: Simple · 🥗 Eating regimen: Vegan, Gluten-Free, Whole30
Why You’ll Love This Recipe
- Solely 5 elements: Bell peppers, onion, olive oil, garlic, and salt and pepper — that’s it. No fancy marinades or particular tools wanted.
- Foil pack = zero cleanup: No grill basket, no veggies slipping by way of the grates, and once you’re accomplished, simply toss the foil. I began making these in foil packs after shedding one too many pepper strips by way of the grill grates — and I’ve by no means appeared again.
- Endlessly versatile: Serve them as a aspect, pile them onto burgers, stuff them into fajitas, or toss them with pasta. They go together with completely every part.
- Wholesome and hands-off: Naturally vegan, gluten-free, and Whole30-friendly. Simply seal the pack and let the grill do the work.
Featured Substances
- Bell peppers: Any colour works, however I really like utilizing a mixture of pink, yellow, and orange for the very best visible attraction and sweetness. Pink, yellow, and orange peppers are sweeter and caramelize superbly on the grill, whereas inexperienced bell peppers are barely extra bitter however add a pleasant distinction in the event you like that taste.
- Onion: Yellow onion is my go-to as a result of it will get the sweetest when caramelized. Pink onion holds its form very well and provides beautiful colour. White onion works however has a sharper chunk.
- Olive oil: Coats the veggies so that they caramelize with out sticking to the foil. You may sub avocado oil (greater smoke level, impartial taste) and even melted butter for a richer style.
- Minced garlic: Recent minced garlic is finest, however jarred minced works in a pinch. For a mellower taste, strive entire smashed cloves — they’ll roast superbly contained in the foil pack. Garlic powder (about ½ teaspoon) is the simplest sub.
- Salt and pepper: Go beneficiant — the veggies can deal with it. Or swap in your favourite spice mix (hold studying for my favourite variation concepts!).
How one can Make Grilled Peppers and Onions in Foil
Begin by slicing your peppers into strips about ½-inch vast and chopping your onions into thick half-moons. Toss every part in an enormous bowl with olive oil, minced garlic, salt, and pepper till evenly coated. You need each strip glistening — that’s what provides you these caramelized edges.
Lay out a big sheet of professional quality aluminum foil, pile the seasoned veggies within the heart, and high with a second sheet of foil. Fold and crimp all 4 edges tightly to seal — you need the pack hermetic so steam builds inside and does the heavy lifting. I all the time double-wrap my foil packs after studying the exhausting manner {that a} single layer can tear, sending garlic oil dripping straight onto the flames (not best!).
Place the pack instantly on the grill grates over medium-high warmth (about 400°F) and let it prepare dinner for about 20 minutes. If you peel again that foil, the veggies ought to be completely tender with flippantly charred, caramelized edges. Full step-by-step directions and measurements are within the recipe card under!

Foil Pack vs. Grill Basket vs. Direct Grilling
Unsure which methodology is best for you? Right here’s a fast breakdown of the three hottest methods to grill peppers and onions:
- Foil pack (this recipe!): The best, most hands-off methodology. The foil steams and caramelizes the veggies on the identical time, and cleanup is so simple as tossing the foil. Finest for weeknight grilling once you need zero fuss.
- Grill basket: Nice for getting extra direct char whereas nonetheless holding small items contained. You’ll want a grill basket (about $15–25 at most shops). Finest once you need that open-flame taste with just a little extra management.
- Direct on the grates: Most char and smoky taste. Lower peppers into massive planks and onions into thick rounds so that they don’t fall by way of. Finest for skilled grillers who need restaurant-level outcomes — simply requires extra consideration and bigger cuts.
Any methodology works superbly, however the foil pack is my go-to for sheer ease and consistency. Toss, seal, grill, accomplished!
Professional Ideas for the Finest Grilled Peppers and Onions
- Heavy-duty foil is a should: Common foil tears too simply. Should you solely have skinny foil, double up the layers for further insurance coverage.
- Don’t overcrowd the pack: Unfold veggies in a single-ish layer so warmth circulates evenly. Should you’re grilling for a crowd, make 2 separate packs fairly than one large one.
- Slice evenly: Uniform ½-inch strips guarantee every part cooks on the identical fee — no burnt bits combined with uncooked items.
- Allow them to relaxation 2 minutes: After pulling the pack off the grill, let it sit sealed for a few minutes. The residual steam finishes cooking and the flavors meld collectively.
- Char trick: Need extra colour and crispiness? Open the foil pack for the final 3–4 minutes of grilling to let direct warmth kiss the veggies. I do that each single time now — it’s a sport changer!
- Gasoline vs. charcoal: Each work nice. Charcoal provides extra smoke taste whereas fuel provides extra constant warmth. Both manner, intention for about 400°F.
Considered one of my favourite issues about grilled peppers and onions is how straightforward they’re to customise. Listed below are 5 taste spins I come again to all summer season:
- Fajita-style: Toss with cumin, chili powder, and a squeeze of lime after grilling. Excellent for loading into tortillas — pair them with my steak fajitas for a full Tex-Mex unfold.
- Italian: Add balsamic vinegar and dried Italian seasoning earlier than grilling. End with recent basil and a drizzle of your finest olive oil.
- Asian-inspired: Swap olive oil for sesame oil, add a splash of soy sauce and a pinch of pink pepper flakes. End with toasted sesame seeds.
- Smoky Southwest: Add smoked paprika, garlic powder, and a pinch of cayenne. Superb alongside grilled rooster or burgers.
- Lemon herb: Toss with lemon zest, dried oregano, and a squeeze of recent lemon juice after grilling. Gentle and recent — excellent with grilled fish.
What to Serve with Grilled Peppers and Onions
With proteins:
As a part of a meal:
- Pile onto hoagies for a Philly-style pepper and onion sub
- Stuff into tortillas for simple veggie fajitas
- Toss with cooked pasta and a drizzle of balsamic
- Serve over rice bowls with avocado and black beans
With different grilled sides:
Storage and Reheating
- Fridge: Retailer leftover grilled peppers and onions in an hermetic container for as much as 4 days.
- Freezer: Freeze in a single layer on a baking sheet, then switch to a freezer bag. They’ll hold for as much as 3 months.
- Reheating: Finest reheated in a scorching skillet for two–3 minutes to revive a few of that char. The microwave works in a pinch however the texture will probably be softer. Don’t re-grill in a brand new foil pack — they’ll flip mushy.
FAQs
In a foil pack, grill peppers and onions at about 400°F for 20 minutes. Should you’re grilling instantly on the grates, it takes about 8–10 minutes per aspect, relying on the scale of your cuts.
Medium-high warmth, round 400°F, works finest. This offers you tender, caramelized veggies with out burning them.
Completely! A grill basket provides you extra direct char. Toss the veggies with oil and seasoning the identical manner, then unfold them within the basket and grill for 10–quarter-hour, tossing often.
Nope! If you’re grilling sliced peppers (strips or planks), you eat the pores and skin and all. Peeling is simply essential once you’re roasting entire peppers to take away the charred outer pores and skin.
Pink, yellow, and orange bell peppers are the sweetest and caramelize superbly. Inexperienced bell peppers work too however have a barely bitter edge. For warmth, throw in some poblano peppers alongside the bells — my private favourite combo is one pink, one yellow, and one orange each time!
First, preheat grill to 400ºF.
Then, put together veggies by slicing peppers and onions into bite-sized items, about 1-inch squares.
Then, place veggies on a big sheet of tin foil.
Drizzle on olive oil after which toss to ensure all veggies are totally coated.
Season with minced garlic and a beneficiant quantity of salt and pepper.
Cowl veggies with one other piece of tin foil after which fold within the sides to create a foil pack.
Grill instantly on the flames at 400ºF for about 20 minutes or till your veggies attain the specified texture.
- Diet data is for 4 servings.
Energy: 73 kcal, Carbohydrates: 6 g, Protein: 1 g, Fats: 5 g, Fiber: 2 g, Sugar: 5 g
Diet data is mechanically calculated, so ought to solely be used as an approximation.
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