Pesto Mayo Chicken Sandwich

1: Combine all ingredients for pesto, except mayonnaise, in a food processor and process until smooth.

2: Pour pesto into a bowl and add mayonnaise. Mix until incorporated and set aside.

3: Cut chicken breast in half lengthwise and flatten. Rub with olive oil, season with salt, pepper, and garlic powder.

4: In a skillet over medium high heat, cook chicken for 4-5 minutes on each side until it reaches 165°F.

5: Cut the loaf of bread lengthwise, spread olive oil on inside pieces, and toast until crispy.

6: Assemble sandwich by spreading a layer of pesto sauce, adding tomatoes, chicken, and cheese slices.

7: Place in a pan under the broiler for about 1 minute to melt cheese.

8: Remove and top with arugula, onions, and avocado. Enjoy!