01 -
Season steak pieces with kosher salt and black pepper. Place them into a large zip-top bag with tamari sauce and crushed garlic. Seal the bag and massage to coat steaks evenly. Refrigerate to marinate for at least 1 hour or up to overnight.
02 -
Remove steaks from the marinade and discard the marinade. Place the steaks on a flat surface. Divide asparagus and bell peppers equally among the steak pieces, placing them in the center. Roll the steak around the vegetables and secure with toothpicks.
03 -
Preheat the air fryer to 400°F (200°C).
04 -
Working in batches, place steak bundles into the air fryer basket. Spray exposed vegetables lightly with olive oil spray. Cook for 5 minutes.
05 -
Remove the steak bundles from the air fryer and allow them to rest for 5 minutes before slicing or serving.
06 -
While the steak bundles rest, heat balsamic vinegar, beef broth, and butter in a small saucepan over medium heat. Whisk to combine and cook until thickened and reduced by half. Season with salt and pepper to taste.
07 -
Pour the sauce over the steak bundles prior to serving.