Heat a large skillet over medium heat, adding a drizzle of olive oil. Season diced chicken breasts with salt, pepper, and garlic powder, then cook in the skillet until golden brown and cooked through, about 6-8 minutes.

Once the chicken is cooked, stir in the fresh broccoli florets and your cooked penne pasta. Mix everything gently to combine, allowing the broccoli to steam for 3-4 minutes.

Sprinkle the ranch dressing mix evenly over the chicken, broccoli, and pasta mixture. To create a creamy sauce, add a splash of water or low-sodium chicken broth and gradually stir in the shredded sharp cheddar cheese. Keep stirring for about 2-3 minutes until the cheese is melted.

Lower the heat to a gentle simmer and let the mixture cook for an additional 5 minutes, stirring occasionally.

Once the dish has reached the desired consistency, remove it from the heat. Serve hot from the skillet, optionally garnished with extra cheese or crushed crackers.