Chicken Philly cheesesteak with smoky seasoned chicken thighs, caramelized peppers, onions, and mushrooms, and a garlicky mayo spread, all piled onto a toasted hoagie roll with melted provolone. These loaded sandwiches are quick to pull together and ideal for weeknight dinners or feeding a crowd.
Slice the chicken thighs evenly so they cook at the same rate and sear properly.
For meal prep, store the cooked filling separately from the garlic mayo and the toasted rolls. Refrigerate the filling in an airtight container for up to 4 days and the garlic mayo for up to 5 days.
Reheat the filling in a skillet over medium heat until steaming hot throughout, or in the microwave in 30-second bursts, stirring in between.
Toast the rolls and add fresh cheese just before serving so the bread stays crisp rather than softening in the refrigerator.
If the vegetables look watery after cooking, continue cooking uncovered for a few extra minutes to let the liquid evaporate before adding the chicken back in.