Start a large pot of salted water to boil and cook the pasta according to the directions on the package. Drain and set aside until the sauce is done.
1 pound pasta
Heat a large, deep skillet over medium heat and add the bacon. Cook until just crisp, about 7-10 minutes. Remove with a slotted spoon to a paper towel lined plate and set aside.
12 ounces bacon
Return the skillet to medium-high heat.
Season the chicken with salt and pepper. Dredge both sides in the flour (if using) to lightly coat, shaking off any excess flour.
1 1/2 pounds boneless, skinless chicken breasts, salt, pepper, 1/2 cup all purpose flour
Cook in the bacon grease for approximately 4-6 minutes per side, or until done through and no longer pink in the center. The internal temperature of chicken needs to reach 165ºF on a meat thermometer inserted into the center of the thickest portion. Remove to the plate, tent with foil to keep warm and set aside.
Drain all but about 1 teaspoon of the bacon grease out of the pan.
Add the diced jalapeño pepper and cook, stirring often, until the peppers are tender and starting to char.
5 jalapeño peppers
Stir in the garlic and cook another 30 seconds.
2 cloves garlic
Add the cream cheese and milk and cook, stirring, until smooth and creamy, about 5 minutes.
16 ounces cream cheese, 2 cups whole milk
Remove the pan from the heat and stir in the shredded cheddar cheese until melted and well combined.
1 cup sharp cheddar cheese
Once the cheese is all melted, add about 3/4ths of the bacon.
Stir the pasta into the sauce.
To serve, spoon the pasta into bowls. Slice the chicken and place on top of the pasta.
Garnish with the extra bacon and slices of jalapeño peppers.