01 -
Slice the seitan 'beef' into thin strips and set aside.
02 -
Heat 10ml oil over medium heat in a skillet. Add the onions followed by bell peppers. Cook until they begin to caramelize. Remove from the pan and set aside.
03 -
Add the remaining oil and seitan to the skillet. Cook until it begins to brown, then add vegetable stock.
04 -
Return the cooked onions and bell peppers to the pan with the seitan. Season with salt and pepper. Remove from heat.
05 -
If using fresh garlic and onion/shallot, add to a small blender with the soy milk and starch. Blend until finely minced.
06 -
Transfer all cheese sauce ingredients to a saucepan and stir until evenly distributed. Cook over low heat while continuously stirring until the sauce thickens and becomes smooth.
07 -
Taste the cheese sauce and adjust seasonings as needed. Remove from heat.
08 -
Heat a clean griddle or pan over medium heat. Slice the hoagie rolls lengthwise without cutting completely through. Spread vegan butter on the inside surfaces and place cut-side down to toast until golden brown.
09 -
Spread cheese sauce inside each toasted roll. Fill with the seitan mixture and top with additional cheese sauce. Serve immediately.