Cook the pasta according to package directions; drain and set aside.

In a skillet, heat the olive oil over medium heat.

Season the chicken breasts with salt and pepper, then add to the skillet. Cook until golden brown and cooked through, about 6-7 minutes per side. Remove chicken and let it rest.

In the same skillet, add the bacon and cook until crispy. Remove and chop into bits.

In the skillet, combine cooked pasta, ranch dressing, and shredded cheddar cheese. Mix well.

Slice the cooked chicken and add it to the pasta mixture along with the bacon. Stir to combine and heat through.

Serve hot, garnished with chopped green onions if desired.