In a large pot, bring salted water to a boil. Add the penne pasta and cook according to package instructions until al dente. Drain and set aside.
In a large skillet, heat olive oil over medium heat. Add the diced chicken breast and season with salt, pepper, and half the ranch seasoning mix. Cook until the chicken is browned and cooked through, approximately 6-8 minutes.
Lower the heat to medium-low and add the cream cheese, chicken broth, and the remaining ranch seasoning mix to the skillet. Stir continuously until the cream cheese melts and the mixture is smooth.
Add the cooked penne pasta and shredded cheddar cheese to the skillet. Stir well to combine everything, ensuring the pasta is coated in the creamy sauce. If the sauce is too thick, add a little more chicken broth to reach your desired consistency.
Stir in the cooked bacon pieces and sliced green onions for added flavor. Cook for an additional 2-3 minutes until everything is heated through.
Plate the Crack Chicken Penne and garnish with extra green onions or additional cheese if desired.