01 -
Cook bacon slices in a large cast iron skillet over medium heat for 8 to 10 minutes until crisp, flipping halfway through for even browning. Remove bacon to paper towels and set aside. Drain all but 2 tablespoons of bacon fat from skillet.
02 -
While bacon cooks, bring a large pot of salted water to boil. Add macaroni and cook according to package directions until just barely al dente to prevent mushiness during baking. Drain pasta and set aside.
03 -
Add chicken strips to the skillet with reserved bacon fat along with minced garlic and oregano. Cook over medium-low heat for 5 minutes until chicken develops golden color, turning pieces halfway. Add broccoli florets, cover, and steam for 5 minutes until bright green and tender.
04 -
In a large bowl, combine drained macaroni with butter, half of the cheddar and pepper jack cheeses, all parmesan, sour cream, and milk. Stir over low heat for 5 minutes until cheese begins melting and sauce becomes creamy but not runny.
05 -
Uncover chicken and broccoli in skillet and crumble half of the cooked bacon on top. Pour creamy macaroni mixture evenly over chicken and broccoli in the skillet.
06 -
Sprinkle remaining cheddar and pepper jack cheeses over top, then add remaining bacon pieces. Bake at 350°F for 15 to 20 minutes until top is bubbling and golden brown. Let cool for 5 minutes before serving to allow sauce to thicken.