Cilantro Lime Chicken Tacos

cooking spray for sauteeing
2-3 large boneless, skinless chicken breasts, cut in bite sized pieces
salt and pepper to taste
1 teaspoon garlic powder
1/2 cup cilantro lime pesto (recipe follows)
flour or corn tortillas
preferred taco garnishes (salsa, sour cream, cheese, etc)

Cilantro Lime Pesto

1 cup fresh cilantro leaves (do not include stems)
2 1/2 tablespoons extra virgin olive oil
2 tablespoons sliced, toasted almonds
3 tablespoons chopped, fresh garlic
1 1/2 teaspoon lime juice
1/2 cup shredded asiago (Parmesan or Romano can be substituted too)
1 1/2 teaspoon kosher salt
1/4 cup chicken broth