Preheat grill to medium-high heat.
Cook the bacon in a skillet over medium heat until crisp.
Remove bacon from pan, and drain on paper towels.
Combine crumbled bacon, cheeses, and next 4 ingredients (through garlic) in a bowl, stirring to combine.
Divide cheese evenly and fill the pepper halves.
Place peppers, cheese side up, on grill rack or grill grate coated with cooking spray.
Cover and grill peppers 8 minutes or until bottoms of peppers are charred and cheese mixture is lightly browned.
Place the peppers on a serving platter.
Sprinkle with cilantro and tomato.