Cook pasta according to package directions. Reserve about 1/2 cup of pasta water before draining.
While pasta is cooking, heat olive oil in a large skillet over medium-high heat. Add chicken and cook until browned and cooked through. Season with salt and pepper.
Add minced garlic to the skillet and cook for about 30 seconds until fragrant.
Stir in the pesto, halved cherry tomatoes, and cooked pasta. Toss to combine. If the sauce is too thick, add a little reserved pasta water until desired consistency is reached.
Serve immediately, garnished with grated parmesan cheese.
Notes
This recipe is easily adaptable. You can add other vegetables like spinach or broccoli.