I also use grated cheddar cheese and bacon that has been chopped, cooked and drained.
Put a few pieces of bacon in each jalapeno. Then top with a big pinch of cheddar. Don't put in too much cheese or it will leak out when it cooks. Just try to put in as much as will melt down and fill each pepper.
I line the baking pan with foil so I don't have a baked-on cheesy mess to scrub afterwards.
Bake at 325 for about 20 minutes. Let cool for a few minutes.Then, serve them to your family!