01 -
Preheat oven to 400°F, grill to medium-high (425–450°F), or prepare campfire coals. Tear four sheets of heavy-duty foil and lightly coat each with cooking spray.
02 -
Cut sausage into coins. Thinly slice the potatoes, carrots, and onion. If necessary, halve larger carrots or onions before slicing.
03 -
In a large bowl, mix all ingredients from the 'Add First' section until evenly coated.
04 -
Divide the mixture evenly among the four foil sheets. Add 1 tablespoon of butter on top of each pack. Seal the foil packs tightly, ensuring no air escapes, but do not double wrap.
05 -
Grill: Cook for 20–30 minutes, flipping halfway through, until vegetables are tender. Oven: Place foil packs on a sheet pan and bake for 30–35 minutes. Campfire: Cook in hot coals for 20–40 minutes, flipping every 5 minutes, depending on coal temperature and vegetable thickness.
06 -
Open foil packs carefully to release steam. Serve hot with ketchup or fresh parsley, if desired.
07 -
Stovetop (No Foil): Place the mixture in a large Dutch oven or skillet over medium-high heat, stirring occasionally, for 12–15 minutes until vegetables are tender. Add more olive oil if needed. Oven (No Foil): Spread the mixture on a parchment-lined sheet pan and bake at 425°F for 30–35 minutes, stirring halfway through.