Heat the olive oil in a 12-inch oven-safe nonstick skillet over medium-high heat until shimmering.
Add the bite-sized chicken pieces and cook, stirring occasionally, until browned on the outside; it does not need to be fully cooked through.
Stir in the dried minced onion flakes and garlic powder until fragrant, about 30 seconds.
Add the enchilada sauce, drained black beans, chicken broth, salsa, heavy cream, and uncooked pasta to the skillet; stir to combine.
Bring the mixture to a boil, then reduce heat to low. Cover the skillet and simmer gently for 15–20 minutes, stirring occasionally, until the pasta is tender and the chicken is cooked through.
Remove the skillet from the heat, top evenly with shredded Pepper Jack cheese, and sprinkle with chopped parsley or cilantro.
Place the skillet under a hot broiler until the cheese is melted and bubbly, watching closely to prevent burning; serve hot.