Step 1

Toss the chicken breasts in ½ cup basil pesto in a medium bowl or plastic bag. Allow to marinate for at least 10 minutes, or up to 8 hours.

Step 2

Heat a grill to medium, approximately 400°F.

Step 3

Place the chicken on the grill.

Step 4

Grill the chicken for 10-12 minutes per side.

Step 5

Place the tomatoes and hamburger buns on the grill.

Step 6

Grill the tomatoes for 2 minutes per side, then place 2 slices of tomato on top of each chicken breast.

Step 7

Add two slices of cheese on top of the tomatoes on each chicken breast and allow to melt over the chicken.

Step 8

Once the cheese is melted, about 3-4 minutes later, remove everything from the grill.

Step 9

Place the chicken breasts on the bottom buns, place two fresh basil leaves on top of the cheese on each sandwich.

Step 10

Spread the remaining ½ cup basil pesto across the top hamburger buns, sandwich together and dig in!