01 -
Preheat grill to medium heat to achieve even cooking temperature throughout.
02 -
Cut two sheets of aluminium foil, each approximately 30x50 cm. Spread 1 tablespoon olive oil in the centre of each sheet.
03 -
Arrange two sausages and half of the sliced pepper and onion on each foil sheet. Drizzle 30 ml beer or broth over each set. Season with salt and black pepper, then gently toss to coat ingredients evenly.
04 -
Fold the short sides of the foil to the centre and fold over twice to seal. Fold each end of the packet twice, ensuring the liquid is secure inside.
05 -
Place sealed packets on the grill and cook for 15–18 minutes, until sausages are fully cooked and vegetables are tender.
06 -
Carefully open the foil packets. Transfer sausages directly onto the grill grates and cook for 2–3 minutes per side to form grill marks. Leave peppers and onions in open packets to keep warm.
07 -
Place each sausage in a sandwich bun. Top with grilled peppers, onions, and mustard if desired. Serve immediately.