1-Preheat oven to 425°F: Preheat oven to 425°F. Line a baking sheet with parchment paper.
2-Brush the jalapeños with the olive oil: Brush the jalapeños with the olive oil on all sides and place on the prepared baking sheet.
3-Roast for about 15 minutes, or until: Roast for about 15 minutes, or until the skin of the jalapeños begins to char slightly.
4-Remove from oven and set aside to: Remove from oven and set aside to to cool slightly.
5-To a medium mixing bowl, add cream: To a medium mixing bowl, add cream cheese, garlic salt, pepper, and onion powder. Mix until creamy.
6-Once the jalapenos are cool enough to: Once the jalapenos are cool enough to handle, roughly chop them and fold them into to the cream cheese mixture.
7-Butter one side of one slice of: Butter one side of one slice of bread. On the opposite side, spread half of the cream cheese mixture. Top the cream cheese mixture with 3 slices of bacon and ½ cup of cheddar cheese. Top with another slice of bread and butter the outside. Repeat these steps with the remaining bread.
8-Add the buttered sandwich to a skillet: Add the buttered sandwich to a skillet and cook both sides over medium heat until the bread is toasted and the cheese is completely melted (3-5 minutes per side). Serve immediately.