In a bowl, combine the feta, cheddar, and cream cheese. Cut the jalapeños lengthwise, for less spiciness remove the seeds ,and stuff each cavity with the cheese mixture. In a shallow bowl beat the egg. In another bowl, place the breadcrumbs. Dip each jalapeño, in flour, egg, and breadcrumbs and then once more in egg and breadcrumbs.In a skillet, heat enough oil to come 1/3 of the way up the sides of the pan to 370F over medium heat. Fry each jalapeño for 2-3 minutes and transfer to a paper towel-lined plate to drain. Cool slightly before serving.

Garnish with the bell pepper and cilantro. Serve with the dipping sauce.