Instructions
Cook time: 30 minutes
Preheat oven to 425°; roughly chop onion/pepper mix into bite-size pieces + thinly slice sirloin against grain; in a bowl, mix beef, onions/peppers, 2 tbsp oil + salt/pep; set aside
Place 2 large pieces of foil on a sheet pan + oil the foil; divide mix into the center of each piece of foil + top each with 1-2 slices cheese
Bring the long edges of foil together + roll to seal, leaving 1-inch of space above ingredients; repeat with side ends of foil—your pack is sealed!; bake 25-27 min
Slice 2 buns in half; toast until warm + golden; open foil packs + divide to buns
