Mix the pear, soy sauce, brown sugar, sesame oil, garlic and ginger in a bowl.
Add the ribeye and onion, toss well and refrigerate for 30 minutes.
Drain the beef mixture in a colander for 2 minutes so loose marinade does not flood the griddle.
Heat a large griddle over high heat and cook the beef in two batches for 2 to 3 minutes each until browned at the edges and at least 145°F.
Divide the beef into four piles, top each with one provolone slice and cover for 30 seconds until softened.
Load the hoagie rolls and serve immediately before the sweet edges lose their crispness.