No, I wouldn't do a cheese stuffed Jalapeno in a pressure cooker. The cooker used for the above recipe works great for a beef and rice filling.
For cheese stuffed Jalapenos, stuff with the cheese of your liking, dredge in flour, then and egg wash and then into a seasoned bread crumb mixture. Deep fry them until golden brown. I like to make them and serve with a bit of salsa, sour cream and chopped green and red onion. We have always called them Jalapeno Poppers.