Loaded steak Quesadillas

𝗜𝗻𝗴𝗿𝗲𝗱𝗶𝗲𝗻𝘁𝘀:

1 lb (453 g) beef sirloin, thinly sliced
1 bell pepper, diced
1 finely chopped onion
2 tsp seasoned salt (divided)
1 tsp Montreal steak spice
1 tsp cayenne pepper
16 slices of provolone cheese
4 tortillas
Vegetable oil