Grilled Chicken and Pesto Farfalle

INGREDIENTS

1 3/4 lb

skinless, boneless chicken breast halves

1 tsp

salt, divided

3/4 tsp

freshly ground black pepper, divided

Cooking spray

20 oz

uncooked farfalle (bow tie pasta)

1 tbsp

butter

garlic cloves, minced

1 1/2 cups

1% low-fat milk, divided

2 tbsp

all-purpose flour

jar commercial pesto (about 1/3 cup)

3/4 cup

half-and-half

2 cups

shredded fresh Parmesan cheese, divided

4 cups

halved grape tomatoes (about 2 pints)

1/2 cup

chopped fresh basil