Trim and pat dry the chicken breasts. Season both sides with salt, pepper, and Italian seasoning.
Heat olive oil in a skillet over medium-high heat. Sear the chicken for 5-6 minutes per side until golden and cooked through. Remove and rest.
Boil rotini pasta according to package directions. Drain and toss with a little butter.
In the same skillet, add butter and minced garlic. Sauté for 30 seconds.
Add heavy cream and simmer for 3-4 minutes. Stir in parmesan until melted and smooth.
Slice the chicken into strips. Toss the pasta in the sauce until fully coated.
Plate the pasta, top with sliced chicken, drizzle with extra sauce, and garnish with parsley.