Heat 1 tsp oil in skillet over med-high; wash one pepper, cut off stem + remove seeds, then cut into thin strips + sauté 4-5 min or until tender; set aside

Wipe 2 mushrooms with a damp paper towel, remove stems + scoop out gills; heat 1 tbsp oil in a skillet over med-high + cook mushrooms 2-3 min per side until browned + tender; season with salt/pep

Add mushrooms + peppers to 2 buns + top with 1-2 tbsp cheese each

Heat a lightly oiled skillet over med-high; toast sandwiches 2-3 min per side until hot + melty—looks good!