Mix cheddar cheese and cream cheese together, fry some bacon til crispy and chop up fine, mix all that together and stuff those peppers with the mix, then grill and feast.
You can add a packet of ranch seasoning to the cheese mix, also, and that works great. This mix works great inside a breaded, halved chicken breast pinned down with water-logged toothpicks also.
Some people also toss a packet of Italian dressing seasoning instead of the ranch...
Man, I'm glad food is on the way. This got me hungry.