Preheat the broiler.
Heat a medium heavy nonstick pan with the canola oil over medium heat. Add the onions and bell peppers and saute until well caramelized, about 2 minutes. Add the garlic and stir until just mixed.
Push the onion mixture to 1 side of the pan. On the other side of the pan, place the thinly sliced smoked turkey. Stir until warm. Combine the onion mixture with the turkey. Mix in the seasoning salt and Worcestershire sauce. Add the processed cheese and stir until melted.
Cut the sandwich rolls in half and dig out the insides of the rolls without puncturing the crust. Toss out excess bread. Divide the turkey mixture evenly among the rolls and top with the provolone cheese slices.
Place under broiler until cheese is just melted. Serve warm.