Bring a large pot of salted water to a boil and cook the pasta according to package instructions.
Heat olive oil in a large pan over medium-high heat.
Add the chicken pieces, season with salt and pepper, and cook for 3–4 minutes per side until golden and fully cooked.
Stir in garlic and Italian seasoning, cooking for 1 minute until fragrant.
Drain the pasta and add it directly to the pan with the chicken.
Add the pesto and toss everything together until evenly coated—this is where your Chicken Pesto Pasta comes together beautifully.
Gently fold in the cherry tomatoes.
Sprinkle with parmesan cheese and fresh parsley, then serve immediately.