Slice the raw steak into thin and small pieces. Removing and discarding the large pieces of fat.
Add a large frypan to the stovetop over high heat.
Add 2 tbsp olive oil to the pan and then the sliced steak.
Add the seasonings to the steak: onion powder, salt and pepper.
Cook, stirring occasionally and all the pieces are completely browned and cooked through.
Remove off of the heat.
Slice the hoagie buns and add 2 Velveeta cheese singles to each bun. Place on a cookie sheet and into the oven on high broil for 2-3 minutes until the cheese is melted.
Add the cooked steak to the sandwiches and serve with some jalapeño aioli.